actions: twister: remove cleanup job

We now cleanup at the beginning.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>

Author: nashif

.github/workflows/twister.yaml

@@ -226,11 +226,6 @@ jobs:
           name: Unit Test Results (Subset ${{ matrix.subset }})
           path: twister-out/twister.xml
 
-      - name: Cleanup
-        if: always()
-        run: |
-          git clean -dxf
-
   twister-test-results:
     name: "Publish Unit Tests Results"
     needs: twister-build