ci: remove free space code

.github/workflows/build-deb.yml

@@ -36,29 +36,6 @@ jobs:
           ref: ${{ env.ref }}
           path: sources
 
-      # https://github.com/apache/flink/blob/02d30ace69dc18555a5085eccf70ee884e73a16e/tools/azure-pipelines/free_disk_space.sh
-      - name: Free some disk space
-        run: |
-          echo "=============================================================================="
-          echo "Freeing up disk space on CI system"
-          echo "=============================================================================="
-
-          echo "Listing 100 largest packages"
-          dpkg-query -Wf '${Installed-Size}\t${Package}\n' | sort -n | tail -n 100
-          df -h
-          echo "Removing large packages"
-          sudo apt-get remove -y '^dotnet-.*'
-          sudo apt-get remove -y '^llvm-.*'
-          sudo apt-get remove -y 'php.*'
-          sudo apt-get remove -y azure-cli google-cloud-sdk google-chrome-stable firefox powershell mono-devel
-          sudo apt-get autoremove -y
-          sudo apt-get clean
-          df -h
-          echo "Removing large directories"
-          # deleting 15GB
-          sudo rm -rf /usr/share/dotnet/
-          df -h
-
       - name: Install ccache
         run: sudo apt-get install -y ccache