Merge pull request #13532 from rabbitmq/mergify/bp/v4.0.x/pr-13531

Remove Bazel files (backport #13514) (backport #13531)

Author: Zerpet

.bazelignore

@@ -1,11 +1,4 @@
 pull_request_rules:
-  - name: Add bazel label if a Bazel file is modified
-    conditions:
-      - files~=\.(bazel|bzl)$
-    actions:
-      label:
-        add:
-          - bazel
   - name: Add make label if a Make file is modified
     conditions:
       - files~=(Makefile|\.mk)$