Remove 4th parameter on new LinkedDataSchemaGenerator

The constructor of LinkedDataSchemaGenerator has only three parameters.

Change-Id: I519f7d3168b1d422139f83f3affb4c422d110c2c

client/tests/phpunit/integration/includes/Hooks/SkinAfterBottomScriptsHandlerTest.php

@@ -4,8 +4,6 @@
 
 use File;
 use MediaWiki\Language\Language;
-use MediaWiki\Revision\RevisionLookup;
-use MediaWiki\Revision\RevisionRecord;
 use MediaWiki\Title\Title;
 use Wikibase\Client\Hooks\LinkedDataSchemaGenerator;
 use Wikibase\Client\RepoLinker;
@@ -38,8 +36,7 @@ public function testCreateSchema( $revisionTimestamp, callable $imageFactory, $d
 		$generator = new LinkedDataSchemaGenerator(
 			$this->createMock( Language::class ),
 			$repoLinker,
-			WikibaseClient::getTermLookup(),
-			$this->createMockRevisionLookup( '1022523983' )
+			WikibaseClient::getTermLookup()
 		);
 
 		$title = $this->mockTitle( 'https://de.wikipedia.org/wiki', 'Douglas Adams' );
@@ -140,18 +137,4 @@ private function mockTitle( $baseURL, $titleText ) {
 		return $mock;
 	}
 
-	/**
-	 * @param string|null $timestamp
-	 * @return RevisionLookup
-	 */
-	private function createMockRevisionLookup( $timestamp ) {
-		$revisionRecord = $this->createMock( RevisionRecord::class );
-		$revisionRecord->method( 'getTimestamp' )
-			->willReturn( $timestamp );
-		$mockRevLookup = $this->createMock( RevisionLookup::class );
-		$mockRevLookup->method( 'getFirstRevision' )
-			->willReturn( $revisionRecord );
-		return $mockRevLookup;
-	}
-
 }