ci: Remove PowerShell pre-commit hook and check_powershell job

.gitlab/ci/pre_commit.yml

@@ -28,31 +28,3 @@ check_pre_commit:
       paths:
         - .cache/submodule_archives
       policy: pull
-
-check_powershell:
-  extends:
-    - .before_script:minimal
-  stage: pre_check
-  image: docker:latest
-  services:
-    - docker:dind
-  tags:
-    - dind
-    - amd64
-    - brew # faster "apk add"
-  needs:
-    - pipeline_variables
-  variables:
-    # brew runners always use fetch
-    GIT_STRATEGY: fetch
-    GIT_DEPTH: 1
-    SUBMODULES_TO_FETCH: "none"
-  rules:
-    - changes:
-        - "*.ps1"
-        - ".gitlab/ci/pre_commit.yml"
-  script:
-    - apk add python3
-    - apk add py3-pip
-    - pip install pre-commit --break-system-packages
-    - pre-commit run --hook-stage manual check-powershell-scripts --files $MODIFIED_FILES