remove ci runner labels from PRs (#150)

* remove ci runner labels from PRs

* moving label deletion to own workflow file

* changing target and removing conditional

* adding comment on error catching
Co-authored-by: NAdvait Jain <advaitjain@users.noreply.github.com>

.github/workflows/ci.yml

@@ -103,3 +103,4 @@ jobs:
         run: |
           tensorflow/lite/micro/tools/ci_build/test_makefile.sh
           tensorflow/lite/micro/tools/ci_build/test_x86.sh
+        
\ No newline at end of file

.github/workflows/remove-labels.yml

+name: Remove Labels
+
+on:
+  pull_request_target:
+    types: [labeled]
+
+jobs:
+  label_cleanup:
+    runs-on: ubuntu-latest
+
+    name: remove CI runner labels
+    steps:
+      - name: remove tags
+        uses: actions/github-script@a3e7071a34d7e1f219a8a4de9a5e0a34d1ee1293
+        with:
+          github-token: ${{secrets.GITHUB_TOKEN}}
+          script: |
+            github.issues.removeLabel({
+              issue_number: context.issue.number,
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              name: 'ci:run'
+            })
+            github.issues.removeLabel({
+              issue_number: context.issue.number,
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              name: 'ci:test'
+            })
+        # Prevent erroring out if label doesn't exist
+        continue-on-error: true