Drop check-rules from github runner

Author: lucic71

.github/workflows/run-tests.yml

@@ -44,10 +44,6 @@ jobs:
         run: ninja
         working-directory: build
 
-      - name: Check rules
-        run: ninja check-rules
-        working-directory: build
-
       - name: Run unit tests
         run: ninja check
         working-directory: build