Delete outdated check_license script (#55425)

Summary:
Pull Request resolved: #55425

See blame — this script lints for a `"PATENTS"` string inside any Git changes, which should not occur any more.

> D7119356 (8 years ago)
>
> [react-native][PR] Check PATENTS does not creep into files
>
> Summary:
> Some files have crept into the repo with the old license header. These are usually from PRs that were opened prior to the re-licensing of the project.

Changelog: [Internal]

Reviewed By: cortinico

Differential Revision: D92417808

fbshipit-source-id: 36e3507f835fe5df99644eb1a47cdc60fa68f88c

Author: huntie

.github/actions/lint/action.yml

@@ -29,9 +29,6 @@ runs:
     - name: Run typescript check
       shell: bash
       run: yarn test-typescript
-    - name: Check license
-      shell: bash
-      run: ./.github/workflow-scripts/check_license.sh
     - name: Check formatting
       shell: bash
       run: yarn run format-check