Tests: Rename legacy setup/teardown hooks to beforeEach/afterEach

Author: mgol

tests/unit/controlgroup/core.js

@@ -161,12 +161,12 @@ QUnit.test( "Single controlgroup button - vertical", function( assert ) {
 } );
 
 QUnit.module( "Controlgroup: Non-empty class key", {
-	setup: function() {
+	beforeEach: function() {
 		this.classKey = $.ui.selectmenu.prototype.options.classes[ "ui-selectmenu-button-closed" ];
 		$.ui.selectmenu.prototype.options.classes[ "ui-selectmenu-button-closed" ] =
 			"something-custom";
 	},
-	teardown: function() {
+	afterEach: function() {
 		$.ui.selectmenu.prototype.options.classes[ "ui-selectmenu-button-closed" ] = this.classKey;
 	}
 } );