remove unused deps in action

Author: JoeWang1127

.github/scripts/action.yaml

@@ -60,8 +60,6 @@ runs:
       cd "${GITHUB_WORKSPACE}"
       pip install --require-hashes -r hermetic_build/common/requirements.txt
       pip install hermetic_build/common
-      pip install --require-hashes -r hermetic_build/library_generation/requirements.txt
-      pip install hermetic_build/library_generation
       pip install --require-hashes -r hermetic_build/release_note_generation/requirements.txt
       pip install hermetic_build/release_note_generation
   - name: Generate changed libraries