Remove issues action

Handled by external MagiskBot

.github/workflows/issues.yml

@@ -1,26 +0,0 @@
-name: Check Issues
-
-on:
-  issues:
-    types: [opened]
-jobs:
-  check:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Check out
-        uses: actions/checkout@v2
-      - name: Read latest version code
-        run: |
-          ver=$(sed -n 's/^magisk.versionCode=//p' gradle.properties)
-          echo MAGISK_VERSION_CODE=$ver >> $GITHUB_ENV
-      - if: contains(github.event.issue.body, format('Magisk version code{0} ', ':')) != true
-        id: close
-        name: Close Issue(template)
-        uses: peter-evans/close-issue@v1
-        with:
-          comment: This issue is being automatically closed because it does not follow the issue template.
-      - if: steps.close.conclusion == 'skipped' && contains(github.event.issue.body, format('Magisk version code{0} {1}', ':', env.MAGISK_VERSION_CODE)) != true
-        name: Close Issue(latest canary)
-        uses: peter-evans/close-issue@v1
-        with:
-          comment: This issue is being automatically closed because latest canary Magisk version code is ${{ env.MAGISK_VERSION_CODE }}.