installer: Remove unused references to wgResourceLoaderMaxQueryLength

* Added in 40e18e4534.
* Removed in 648bed9f83 (r87494).

The latter left the Installer::values array still populating this
variable eventhough it was no longer used in the generators output.

The example in overrides.php is also outdated as modifying this
variable there would have no effect.

Change-Id: I0c86e94a004c034702c5fcd83257c0f4c3d15a57

includes/installer/Installer.php

@@ -186,7 +186,6 @@ abstract class Installer {
 		'wgUseInstantCommons',
 		'wgUpgradeKey',
 		'wgDefaultSkin',
-		'wgResourceLoaderMaxQueryLength',
 	);
 
 	/**

includes/installer/LocalSettingsGenerator.php

@@ -63,7 +63,7 @@ class LocalSettingsGenerator {
 				'wgRightsText', 'wgMainCacheType', 'wgEnableUploads',
 				'wgMainCacheType', '_MemCachedServers', 'wgDBserver', 'wgDBuser',
 				'wgDBpassword', 'wgUseInstantCommons', 'wgUpgradeKey', 'wgDefaultSkin',
-				'wgMetaNamespace', 'wgResourceLoaderMaxQueryLength', 'wgLogo',
+				'wgMetaNamespace', 'wgLogo',
 			),
 			$db->getGlobalNames()
 		);

mw-config/overrides.php

@@ -38,7 +38,7 @@ Then add the following to the bottom of this file:
 class MyLocalSettingsGenerator extends LocalSettingsGenerator {
 	function getText() {
 		// Modify an existing setting
-		$this->values['wgResourceLoaderMaxQueryLength'] = 512;
+		$this->values['wgDefaultSkin'] = 'vector';
 		// add a new setting
 		$ls = parent::getText();
 		return $ls . "\n\$wgUseTex = true;\n";