Delete docker login from GHA (#271)

Author: samarth-gupta-traceable

.github/workflows/pr-test.yml

@@ -29,12 +29,6 @@ jobs:
             gradle-packages-${{ runner.os }}-${{ github.job }}
             gradle-packages-${{ runner.os }}
 
-      - name: Login to Docker Hub
-        uses: docker/login-action@v1
-        with:
-          username: ${{ secrets.DOCKERHUB_READ_USER }}
-          password: ${{ secrets.DOCKERHUB_READ_TOKEN }}
-
       - name: smoke-test
         run: make smoke-test
         env: