Revert "feat(@angular/cli): Add VsCode extension recommendations"

This reverts commit d9166b0.

Author: alexeagle

packages/schematics/angular/migrations/migration-collection.json

@@ -29,11 +29,6 @@
  "version": "7.0.3",
  "factory": "./update-7/index#updateDevkitBuildNgPackagr",
  "description": "Update an Angular CLI project to version 7."
- },
- "migration-07": {
- "version": "8.0.0",
- "factory": "./update-vscode-recommendations/update-8.0.0",
- "description": "Update an Angular CLI project to version 8.0.0"
  }
  }
 }