compliance: license checker to enforce MPL pre-EOY 2023 no longer necessary (#20175)

.github/scripts/license_checker.sh

@@ -1,20 +0,0 @@
-#!/bin/bash
-# Copyright (c) HashiCorp, Inc.
-# SPDX-License-Identifier: BUSL-1.1
-
-if [[ ${GITHUB_BASE_REF} == release/1.14.* ]] || [[ ${GITHUB_BASE_REF} == release/1.15.* ]] || [[ ${GITHUB_BASE_REF} == release/1.16.* ]]; then
-    busl_files=$(grep -r 'SPDX-License-Identifier: BUSL' . --exclude-dir .github)
-
-    if [ -n "$busl_files" ]; then
-        echo "Found BUSL occurrences in the PR branch! (See NET-5258 for details)"
-        echo -n "$busl_files"
-        exit 1
-    else
-        echo "Did not find any occurrences of BUSL in the PR branch"
-        exit 0
-    fi
-    echo "The variable starts with release/1.14, release/1.15, or release/1.17."
-else
-    echo "Skipping BUSL check since ${GITHUB_BASE_REF} not one of release/1.14.*, release/1.15.*, or release/1.16.*."
-    exit 0
-fi

.github/workflows/license-checker.yml

@@ -1,24 +0,0 @@
-# Copyright (c) HashiCorp, Inc.
-# SPDX-License-Identifier: MPL-2.0
-
-# This workflow checks that the BUSL license is not mentioned anywhere in
-# a PR targeting a release that should maintain the MPL-2.0 license.
-name: License Checker
-
-on:
-  pull_request:
-    # Logic to only apply check 1.1[4,5,6].x branches is in license_checker.sh
-    types: [opened, synchronize]
-
-jobs:
-  # checks that the diff does not contain any reference to
-  # the BUSL license and thus retains the MPL-2.0 license
-  license-check:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
-        with:
-          ref: ${{ github.event.pull_request.head.sha }}
-          fetch-depth: 0 # by default the checkout action doesn't checkout all branches
-      - name: Check for BUSL text in diff
-        run: ./.github/scripts/license_checker.sh