Remove qlty, we are not using it anyway

Author: Burgestrand

.github/workflows/main.yml

@@ -9,14 +9,6 @@ on:
 permissions:
   contents: read
 
-env:
-  # `github.ref` points to the *merge commit* when running tests on a pull request, which will be a commit
-  # that doesn't exists in our code base. Since this workflow triggers from a PR, we use the HEAD SHA instead.
-  #
-  # NOTE: These both used to be used by Code Climate (cc-test-reporter), superseded by qlty.sh
-  GIT_COMMIT_SHA: ${{ github.event.pull_request.head.sha }}
-  GIT_BRANCH: ${{ github.head_ref }}
-
 jobs:
   matrix-test:
     runs-on: ubuntu-latest
@@ -72,25 +64,6 @@ jobs:
           path: coverage
           retention-days: 1
 
-  coverage-upload:
-    permissions:
-      id-token: write # Required for OIDC
-    needs: test
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - name: Download coverage results
-        uses: actions/download-artifact@v4
-        with:
-          name: coverage-results
-          path: coverage
-      - name: Upload code coverage to qlty.sh
-        uses: qltysh/qlty-action/coverage@v2
-        with:
-          oidc: true
-          format: simplecov
-          files: coverage/.resultset.json
-
   rubocop:
     runs-on: ubuntu-latest
     steps:

README.md

@@ -1,7 +1,6 @@
 # Pundit
 
 [![Main](https://github.com/varvet/pundit/actions/workflows/main.yml/badge.svg)](https://github.com/varvet/pundit/actions/workflows/main.yml)
-[![Maintainability](https://qlty.sh/gh/varvet/projects/pundit/maintainability.svg)](https://qlty.sh/gh/varvet/projects/pundit)
 [![Inline docs](https://inch-ci.org/github/varvet/pundit.svg?branch=main)](https://inch-ci.org/github/varvet/pundit)
 [![Gem Version](https://badge.fury.io/rb/pundit.svg)](https://badge.fury.io/rb/pundit)