remove redundant pana

Author: felangel

.github/workflows/dart_frog_lint.yaml

@@ -27,8 +27,3 @@ jobs:
         with:
           analyze_directories: lib
           working_directory: packages/dart_frog_lint
-
-  pana:
-    uses: VeryGoodOpenSource/very_good_workflows/.github/workflows/pana.yml@v1
-    with:
-      working_directory: packages/dart_frog_lint