Remove deprecated wfMemcKey() function

Bug: T266502
Change-Id: I1e4b20cc30fa3ef4671d8b80e660b2ac3f469d80

RELEASE-NOTES-1.36

@@ -309,6 +309,7 @@ because of Phabricator reports.
   unused outside of MediaWiki core.
 * Skin::subPageSubtitle() has been changed to private method. Callers should
   use Skin::prepareSubtitle().
+* wfForeignMemcKey() and wfMemcKey(), deprecated in 1.35, have been removed.
 * …
 
 === Deprecations in 1.36 ===

includes/GlobalFunctions.php

@@ -2397,17 +2397,6 @@ function wfGetPrecompiledData( $name ) {
 	return false;
 }
 
-/**
- * Make a cache key for the local wiki.
- *
- * @deprecated since 1.30 Call makeKey on a BagOStuff instance
- * @param string|int ...$args
- * @return string
- */
-function wfMemcKey( ...$args ) {
-	return ObjectCache::getLocalClusterInstance()->makeKey( ...$args );
-}
-
 /**
  * Get an ASCII string identifying this wiki
  * This is used as a prefix in memcached keys

tests/phpunit/includes/GlobalFunctions/GlobalTest.php

@@ -683,17 +683,6 @@ class GlobalTest extends MediaWikiIntegrationTestCase {
 		);
 	}
 
-	/**
-	 * @covers ::wfMemcKey
-	 */
-	public function testWfMemcKey() {
-		$cache = ObjectCache::getLocalClusterInstance();
-		$this->assertEquals(
-			$cache->makeKey( 'foo', 123, 'bar' ),
-			wfMemcKey( 'foo', 123, 'bar' )
-		);
-	}
-
 	public static function provideWfShellWikiCmdList() {
 		global $wgPhpCli;