Revert "MK8S-25: Add clean step before build in GitHub Actions"

This reverts commit d99507e.

Author: rdebay-scality

.github/workflows/build.yaml

@@ -81,8 +81,6 @@ jobs:
           fetch-depth: 0
       - name: Set safe directory (since container is root and not user 1001)
         run: git config --global --add safe.directory ${{ github.workspace }}
-      - name: Clean previous build artifacts
-        run: cd "${{ github.workspace }}" && ./doit.sh clean
       - name: Build everything
         run: cd "${{ github.workspace }}" && ./doit.sh -n 4 --verbosity 2 --failure-verbosity 2
       - name: Prepare artifacts