github: Remove unit_tests_succeeded step (#1255)

Author: bkeryan

.github/workflows/CI.yml

@@ -31,12 +31,6 @@ jobs:
     name: Run unit tests
     uses: ./.github/workflows/run_unit_tests.yml
     needs: [check_nims]
-  unit_tests_succeeded:
-    name: Unit tests succeeded
-    needs: [run_unit_tests]
-    runs-on: ubuntu-latest
-    steps:
-      - run: exit 0
   run_system_tests:
     name: Run system tests
     uses: ./.github/workflows/run_system_tests.yml
@@ -48,4 +42,4 @@ jobs:
     if: always()
     permissions:
       checks: write
-      pull-requests: write
+      pull-requests: write