remove setup of env vars

.github/workflows/publish-docker.yml

@@ -11,13 +11,6 @@ jobs:
   docker:
     runs-on: ubuntu-latest
     steps:
-      - name: Set Environment Variables
-        run:
-          echo "BUILD_VER=v0.0.$GITHUB_RUN_NUMBER" >> $GITHUB_ENV
-        if ${{ github.head_ref }} = "master"
-          echo "TAG=latest" >>$GITHUB_ENV
-        if ${{ github.head_ref }} = "develop"
-          echo "TAG=develop" >> $GITHUB_ENV
       -
         name: Checkout
         uses: actions/checkout@v2