chore: remove staging bucket v2 (#766)

This PR was generated using Autosynth. 🌈 Synth log will be available here: https://source.cloud.google.com/results/invocations/9937db82-260b-47fe-9b7a-6b197f9458a9/targets - [ ] To automatically regenerate this PR, check this box. (May take up to 24 hours.) Source-Link: googleapis/synthtool@572ef8f

Author: yoshi-automation

.kokoro/release/publish_javadoc.sh

@@ -24,11 +24,6 @@ if [[ -z "${STAGING_BUCKET}" ]]; then
  exit 1
 fi
 
-if [[ -z "${STAGING_BUCKET_V2}" ]]; then
- echo "Need to set STAGING_BUCKET_V2 environment variable"
- exit 1
-fi
-
 # work from the git root directory
 pushd $(dirname "$0")/../../
 

synth.metadata

@@ -4,14 +4,14 @@
  "git": {
  "name": ".",
  "remote": "https://github.com/googleapis/java-storage.git",
- "sha": "537ce30ede5bc1c55cdb14ce1f779ebc2f4ce688"
+ "sha": "5e9906173ade5434ce1cecbd920445494b375652"
  }
  },
  {
  "git": {
  "name": "synthtool",
  "remote": "https://github.com/googleapis/synthtool.git",
- "sha": "bb854b6c048619e3be4e8b8ce8ed10aa74ea78ef"
+ "sha": "572ef8f70edd9041f5bcfa71511aed6aecfc2098"
  }
  }
  ],