remove old images from README

Author: deminy

README.md

@@ -25,10 +25,6 @@ Table of Contents
  * [Swoole 5.1](#swoole-51)
  * [Swoole 5.0](#swoole-50)
  * [Swoole 4.8](#swoole-48)
- * [Swoole 4.7](#swoole-47)
- * [Swoole 4.6](#swoole-46)
- * [Swoole 4.5](#swoole-45)
- * [Swoole 4.4](#swoole-44)
  * [Nightly images](#nightly-images-built-daily-using-the-master-branch-of-swoole-src)
 * [Build Images Manually](#build-images-manually)
 * [Credits](#credits)
@@ -245,43 +241,6 @@ Note: We don't have development tools built in for Alpine images. There is no Do
 | PHP 7.3 | [4.8.13-php7.3, 4.8-php7.3](https://github.com/swoole/docker-swoole/tree/4.8.13/dockerfiles/4.8.13/php7.3/cli/Dockerfile) | [4.8.13-php7.3-dev, 4.8-php7.3-dev](https://github.com/swoole/docker-swoole/tree/4.8.13/dockerfiles/4.8.13/php7.3/cli/Dockerfile) | [4.8.13-php7.3-alpine, 4.8-php7.3-alpine](https://github.com/swoole/docker-swoole/tree/4.8.13/dockerfiles/4.8.13/php7.3/alpine/Dockerfile) |
 | PHP 7.2 | [4.8.13-php7.2, 4.8-php7.2](https://github.com/swoole/docker-swoole/tree/4.8.13/dockerfiles/4.8.13/php7.2/cli/Dockerfile) | [4.8.13-php7.2-dev, 4.8-php7.2-dev](https://github.com/swoole/docker-swoole/tree/4.8.13/dockerfiles/4.8.13/php7.2/cli/Dockerfile) | [4.8.13-php7.2-alpine, 4.8-php7.2-alpine](https://github.com/swoole/docker-swoole/tree/4.8.13/dockerfiles/4.8.13/php7.2/alpine/Dockerfile) |
 
-### Swoole 4.7
-
-| PHP Versions | Default Images | Dev Images | Alpine Images |
-|-|-|-|-|
-| PHP 8.0 | [4.7.1-php8.0, 4.7-php8.0,<br />4.7](https://github.com/swoole/docker-swoole/blob/4.7.1/dockerfiles/4.7.1/php8.0/cli/Dockerfile) | [4.7.1-php8.0-dev, 4.7-php8.0-dev,<br />4.7-dev](https://github.com/swoole/docker-swoole/blob/4.7.1/dockerfiles/4.7.1/php8.0/cli/Dockerfile) | [4.7.1-php8.0-alpine, 4.7-php8.0-alpine,<br />4.7-alpine](https://github.com/swoole/docker-swoole/blob/4.7.1/dockerfiles/4.7.1/php8.0/alpine/Dockerfile) |
-| PHP 7.4 | [4.7.1-php7.4, 4.7-php7.4](https://github.com/swoole/docker-swoole/blob/4.7.1/dockerfiles/4.7.1/php7.4/cli/Dockerfile) | [4.7.1-php7.4-dev, 4.7-php7.4-dev](https://github.com/swoole/docker-swoole/blob/4.7.1/dockerfiles/4.7.1/php7.4/cli/Dockerfile) | [4.7.1-php7.4-alpine, 4.7-php7.4-alpine](https://github.com/swoole/docker-swoole/blob/4.7.1/dockerfiles/4.7.1/php7.4/alpine/Dockerfile) |
-| PHP 7.3 | [4.7.1-php7.3, 4.7-php7.3](https://github.com/swoole/docker-swoole/blob/4.7.1/dockerfiles/4.7.1/php7.3/cli/Dockerfile) | [4.7.1-php7.3-dev, 4.7-php7.3-dev](https://github.com/swoole/docker-swoole/blob/4.7.1/dockerfiles/4.7.1/php7.3/cli/Dockerfile) | [4.7.1-php7.3-alpine, 4.7-php7.3-alpine](https://github.com/swoole/docker-swoole/blob/4.7.1/dockerfiles/4.7.1/php7.3/alpine/Dockerfile) |
-| PHP 7.2 | [4.7.1-php7.2, 4.7-php7.2](https://github.com/swoole/docker-swoole/blob/4.7.1/dockerfiles/4.7.1/php7.2/cli/Dockerfile) | [4.7.1-php7.2-dev, 4.7-php7.2-dev](https://github.com/swoole/docker-swoole/blob/4.7.1/dockerfiles/4.7.1/php7.2/cli/Dockerfile) | [4.7.1-php7.2-alpine, 4.7-php7.2-alpine](https://github.com/swoole/docker-swoole/blob/4.7.1/dockerfiles/4.7.1/php7.2/alpine/Dockerfile) |
-
-### Swoole 4.6
-
-| PHP Versions | Default Images | Dev Images | Alpine Images |
-|-|-|-|-|
-| PHP 8.0 | [4.6.7-php8.0, 4.6-php8.0,<br />4.6](https://github.com/swoole/docker-swoole/blob/4.6.7/dockerfiles/4.6.7/php8.0/cli/Dockerfile) | [4.6.7-php8.0-dev, 4.6-php8.0-dev,<br />4.6-dev](https://github.com/swoole/docker-swoole/blob/4.6.7/dockerfiles/4.6.7/php8.0/cli/Dockerfile) | [4.6.7-php8.0-alpine, 4.6-php8.0-alpine,<br />4.6-alpine](https://github.com/swoole/docker-swoole/blob/4.6.7/dockerfiles/4.6.7/php8.0/alpine/Dockerfile) |
-| PHP 7.4 | [4.6.7-php7.4, 4.6-php7.4](https://github.com/swoole/docker-swoole/blob/4.6.7/dockerfiles/4.6.7/php7.4/cli/Dockerfile) | [4.6.7-php7.4-dev, 4.6-php7.4-dev](https://github.com/swoole/docker-swoole/blob/4.6.7/dockerfiles/4.6.7/php7.4/cli/Dockerfile) | [4.6.7-php7.4-alpine, 4.6-php7.4-alpine](https://github.com/swoole/docker-swoole/blob/4.6.7/dockerfiles/4.6.7/php7.4/alpine/Dockerfile) |
-| PHP 7.3 | [4.6.7-php7.3, 4.6-php7.3](https://github.com/swoole/docker-swoole/blob/4.6.7/dockerfiles/4.6.7/php7.3/cli/Dockerfile) | [4.6.7-php7.3-dev, 4.6-php7.3-dev](https://github.com/swoole/docker-swoole/blob/4.6.7/dockerfiles/4.6.7/php7.3/cli/Dockerfile) | [4.6.7-php7.3-alpine, 4.6-php7.3-alpine](https://github.com/swoole/docker-swoole/blob/4.6.7/dockerfiles/4.6.7/php7.3/alpine/Dockerfile) |
-| PHP 7.2 | [4.6.7-php7.2, 4.6-php7.2](https://github.com/swoole/docker-swoole/blob/4.6.7/dockerfiles/4.6.7/php7.2/cli/Dockerfile) | [4.6.7-php7.2-dev, 4.6-php7.2-dev](https://github.com/swoole/docker-swoole/blob/4.6.7/dockerfiles/4.6.7/php7.2/cli/Dockerfile) | [4.6.7-php7.2-alpine, 4.6-php7.2-alpine](https://github.com/swoole/docker-swoole/blob/4.6.7/dockerfiles/4.6.7/php7.2/alpine/Dockerfile) |
-
-### Swoole 4.5
-
-| PHP Versions | Default Images | Dev Images | Alpine Images |
-|-|-|-|-|
-| PHP 8.0 | [4.5.11-php8.0, 4.5-php8.0,<br />4.5](https://github.com/swoole/docker-swoole/blob/4.5.11/dockerfiles/4.5.11/php8.0/cli/Dockerfile) | [4.5.11-php8.0-dev, 4.5-php8.0-dev,<br />4.5-dev](https://github.com/swoole/docker-swoole/blob/4.5.11/dockerfiles/4.5.11/php8.0/cli/Dockerfile) | [4.5.11-php8.0-alpine, 4.5-php8.0-alpine,<br />4.5-alpine](https://github.com/swoole/docker-swoole/blob/4.5.11/dockerfiles/4.5.11/php8.0/alpine/Dockerfile) |
-| PHP 7.4 | [4.5.11-php7.4, 4.5-php7.4](https://github.com/swoole/docker-swoole/blob/4.5.11/dockerfiles/4.5.11/php7.4/cli/Dockerfile) | [4.5.11-php7.4-dev, 4.5-php7.4-dev](https://github.com/swoole/docker-swoole/blob/4.5.11/dockerfiles/4.5.11/php7.4/cli/Dockerfile) | [4.5.11-php7.4-alpine, 4.5-php7.4-alpine](https://github.com/swoole/docker-swoole/blob/4.5.11/dockerfiles/4.5.11/php7.4/alpine/Dockerfile) |
-| PHP 7.3 | [4.5.11-php7.3, 4.5-php7.3](https://github.com/swoole/docker-swoole/blob/4.5.11/dockerfiles/4.5.11/php7.3/cli/Dockerfile) | [4.5.11-php7.3-dev, 4.5-php7.3-dev](https://github.com/swoole/docker-swoole/blob/4.5.11/dockerfiles/4.5.11/php7.3/cli/Dockerfile) | [4.5.11-php7.3-alpine, 4.5-php7.3-alpine](https://github.com/swoole/docker-swoole/blob/4.5.11/dockerfiles/4.5.11/php7.3/alpine/Dockerfile) |
-| PHP 7.2 | [4.5.11-php7.2, 4.5-php7.2](https://github.com/swoole/docker-swoole/blob/4.5.11/dockerfiles/4.5.11/php7.2/cli/Dockerfile) | [4.5.11-php7.2-dev, 4.5-php7.2-dev](https://github.com/swoole/docker-swoole/blob/4.5.11/dockerfiles/4.5.11/php7.2/cli/Dockerfile) | [4.5.11-php7.2-alpine, 4.5-php7.2-alpine](https://github.com/swoole/docker-swoole/blob/4.5.11/dockerfiles/4.5.11/php7.2/alpine/Dockerfile) |
-| PHP 7.1 | [4.5.11-php7.1, 4.5-php7.1](https://github.com/swoole/docker-swoole/blob/4.5.11/dockerfiles/4.5.11/php7.1/cli/Dockerfile) | [4.5.11-php7.1-dev, 4.5-php7.1-dev](https://github.com/swoole/docker-swoole/blob/4.5.11/dockerfiles/4.5.11/php7.1/cli/Dockerfile) | [4.5.11-php7.1-alpine, 4.5-php7.1-alpine](https://github.com/swoole/docker-swoole/blob/4.5.11/dockerfiles/4.5.11/php7.1/alpine/Dockerfile) |
-
-### Swoole 4.4
-
-| PHP Versions | Default Images | Dev Images | Alpine Images |
-|-|-|-|-|
-| PHP 7.4 | [4.4.25-php7.4, 4.4-php7.4,<br />4.4](https://github.com/swoole/docker-swoole/blob/4.4.25/dockerfiles/4.4.25/php7.4/cli/Dockerfile) | [4.4.25-php7.4-dev, 4.4-php7.4-dev,<br />4.4-dev](https://github.com/swoole/docker-swoole/blob/4.4.25/dockerfiles/4.4.25/php7.4/cli/Dockerfile) | [4.4.25-php7.4-alpine, 4.4-php7.4-alpine,<br />4.4-alpine](https://github.com/swoole/docker-swoole/blob/4.4.25/dockerfiles/4.4.25/php7.4/alpine/Dockerfile) |
-| PHP 7.3 | [4.4.25-php7.3, 4.4-php7.3](https://github.com/swoole/docker-swoole/blob/4.4.25/dockerfiles/4.4.25/php7.3/cli/Dockerfile) | [4.4.25-php7.3-dev, 4.4-php7.3-dev](https://github.com/swoole/docker-swoole/blob/4.4.25/dockerfiles/4.4.25/php7.3/cli/Dockerfile) | [4.4.25-php7.3-alpine, 4.4-php7.3-alpine](https://github.com/swoole/docker-swoole/blob/4.4.25/dockerfiles/4.4.25/php7.3/alpine/Dockerfile) |
-| PHP 7.2 | [4.4.25-php7.2, 4.4-php7.2](https://github.com/swoole/docker-swoole/blob/4.4.25/dockerfiles/4.4.25/php7.2/cli/Dockerfile) | [4.4.25-php7.2-dev, 4.4-php7.2-dev](https://github.com/swoole/docker-swoole/blob/4.4.25/dockerfiles/4.4.25/php7.2/cli/Dockerfile) | [4.4.25-php7.2-alpine, 4.4-php7.2-alpine](https://github.com/swoole/docker-swoole/blob/4.4.25/dockerfiles/4.4.25/php7.2/alpine/Dockerfile) |
-| PHP 7.1 | [4.4.25-php7.1, 4.4-php7.1](https://github.com/swoole/docker-swoole/blob/4.4.25/dockerfiles/4.4.25/php7.1/cli/Dockerfile) | [4.4.25-php7.1-dev, 4.4-php7.1-dev](https://github.com/swoole/docker-swoole/blob/4.4.25/dockerfiles/4.4.25/php7.1/cli/Dockerfile) | [4.4.25-php7.1-alpine, 4.4-php7.1-alpine](https://github.com/swoole/docker-swoole/blob/4.4.25/dockerfiles/4.4.25/php7.1/alpine/Dockerfile) |
-
 ## Nightly images (built daily using the master branch of [swoole-src](https://github.com/swoole/swoole-src))
 
 | PHP Versions | Default Images | Dev Images | ZTS Images| Alpine Images |