remove gitlab support

.github/workflows/main.yml

@@ -1,22 +0,0 @@
-name: GitlabSync
-
-on:
-  - push
-  - delete
-
-jobs:
-  sync:
-    runs-on: ubuntu-latest
-    name: Git Repo Sync
-    steps:
-    - uses: actions/checkout@v2
-      with:
-        fetch-depth: 0
-    - uses: wangchucheng/git-repo-sync@v0.1.0
-      with:
-        # Such as https://github.com/wangchucheng/git-repo-sync.git
-        target-url: https://github.com/sudo-flix/sudo-source.git
-        # Such as wangchucheng
-        target-username: itzCozi
-          # You can store token in your project's 'Setting > Secrets' and reference the name here. Such as ${{ secrets.ACCESS\_TOKEN }}
-        target-token: glpat-xs8fvu6iArH2xNxQUtKz