Remove possibly vulnerable LLM check workflow. (#6032)

.github/workflows/llm_checks.yml

@@ -1,82 +0,0 @@
-# SECURITY:
-#
-# This workflow runs on pull_request_target and has write privileges.
-# Those are used to add labels to the PR.
-#
-# **IF a user can run code in here, they would be able to extract our secrets.**
-#
-# This is why it doesn't run external scripts.
-# The exception is the get_real_pr_shas.yml workflow.
-# The input of it is santized.
-
-name: AI/LLM Checks
-
-on:
-  pull_request_target:
-
-jobs:
-  real_pr_shas:
-    uses: rizinorg/rizin/.github/workflows/get_real_pr_shas.yml@dev
-
-  ai_checks:
-    name: LLM checks
-    permissions:
-      pull-requests: write
-    runs-on: ubuntu-latest
-    needs: real_pr_shas
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-        with:
-          fetch-depth: 0  # Full history needed for commit scanning
-
-      - name: Validate input hashes
-        env:
-          BASE_SHA: ${{ needs.real_pr_shas.outputs.BASE_SHA }}
-          HEAD_SHA: ${{ needs.real_pr_shas.outputs.HEAD_SHA }}
-        run: |
-          if echo "$BASE_SHA" | grep "[^a-f0-9]"; then
-            echo "BASE_SHA is malformed: $BASE_SHA"
-            exit 1
-          fi
-          if echo "$HEAD_SHA" | grep "[^a-f0-9]"; then
-            echo "HEAD_SHA is malformed: $HEAD_SHA"
-            exit 1
-          fi
-
-      - name: Check AGENT.md is unchanged
-        env:
-          BASE_SHA: ${{ needs.real_pr_shas.outputs.BASE_SHA }}
-        run: |
-          diff=$(git diff --name-status "$BASE_SHA" AGENTS.md)
-          if [[ $? -eq 128 ]]; then
-          	echo "Failed to diff"
-          	exit 1
-          fi
-
-          if [[ -n "$diff" ]]; then
-          	echo "Edits to 'AGENT.md' are not allowed!"
-          	exit 1
-          fi
-
-      - name: Check for AI usage and label
-        env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          REPO: ${{ github.repository }}
-          NUMBER: ${{ github.event.number }}
-          BASE_SHA: ${{ needs.real_pr_shas.outputs.BASE_SHA }}
-          HEAD_SHA: ${{ needs.real_pr_shas.outputs.HEAD_SHA }}
-        run: |
-          LABEL_NAME="AI/LLM"
-          NEEDLE="Co-authored-by agent"
-
-          diff=$(git log --pretty=%B "$BASE_SHA".."$HEAD_SHA" )
-          if [[ $? -eq 128 ]]; then
-          	echo "Failed to get log"
-          	exit 2
-          fi
-
-          if echo "$diff" | grep "$NEEDLE"; then
-            echo "Authored by AI agent"
-            gh pr --repo $REPO edit $NUMBER --add-label "$LABEL_NAME"
-          fi