Remove wgMathUseRestBase

Bug: T274436
Change-Id: I0c0311130516646833ef862e047c8f540f40c92a

extension.json

@@ -111,9 +111,6 @@
 		"MathoidCli": {
 			"value": false
 		},
-		"MathUseRestBase": {
-			"value": true
-		},
 		"MathValidModes": {
 			"description": "To access this at run-time, use MathRenderer::getValidModes(). Do not use the non-normalized configuration directly.",
 			"value": [

src/MathValidator.php

@@ -4,7 +4,6 @@ namespace MediaWiki\Extension\Math;
 
 use DataValues\StringValue;
 use InvalidArgumentException;
-use MediaWiki\Extension\Math\InputCheck\RestbaseChecker;
 use MediaWiki\MediaWikiServices;
 use ValueValidators\Error;
 use ValueValidators\Result;
@@ -26,20 +25,16 @@ class MathValidator implements ValueValidator {
 	 * @throws InvalidArgumentException if not called with a StringValue
 	 */
 	public function validate( $value ) {
-		global $wgMathUseRestBase;
 		if ( !( $value instanceof StringValue ) ) {
 			throw new InvalidArgumentException( '$value must be a StringValue' );
 		}
 
 		// get input String from value
 		$tex = $value->getValue();
-		if ( $wgMathUseRestBase ) {
-			$checker = new RestbaseChecker( $tex );
-		} else {
 		$checker = MediaWikiServices::getInstance()
 			->getService( 'Math.CheckerFactory' )
 			->newMathoidChecker( $tex, 'tex' );
-		}
+
 		if ( $checker->isValid() ) {
 			return Result::newSuccess();
 		}

tests/phpunit/MathValidatorTest.php

@@ -17,11 +17,6 @@ class MathValidatorTest extends MediaWikiTestCase {
 	private const VADLID_TEX = "\sin x";
 	private const INVADLID_TEX = "\\notExists";
 
-	protected function setUp() : void {
-		parent::setUp();
-		$this->setMwGlobals( 'wgMathUseRestBase', false );
-	}
-
 	public function testNotStringValue() {
 		$validator = new MathValidator();
 		$this->expectException( InvalidArgumentException::class );