Remove display:inline-block highlight hacks for math nodes

With getClientRects these are no longer necessary.

Depends on I09f1c0850 in VE core.

Change-Id: I2c4c1809a92c6d2cbf6769782f7595a508d823ea

Math.php

@@ -483,9 +483,6 @@ $wgResourceModules['ext.math.visualEditor'] = array(
 		'VisualEditor/ve.ui.MWMathInspector.js',
 		'VisualEditor/ve.ui.MWMathInspectorTool.js',
 	),
-	'styles' => array(
-		'VisualEditor/ve.ce.MWMathNode.css',
-	),
 	'dependencies' => array(
 		'ext.visualEditor.mwcore',
 	),

modules/VisualEditor/ve.ce.MWMathNode.css

@@ -1,3 +0,0 @@
-.ve-ce-mwMathNode {
-	display: inline-block;
-}