Demos: Remove use of disableSelection() in widget demo, no need

Ref 4916487

Author: jzaefferer

demos/widget/default.html

@@ -39,9 +39,7 @@
 			_create: function() {
 				this.element
 					// add a class for theming
-					.addClass( "custom-colorize" )
-					// prevent double click to select text
-					.disableSelection();
+					.addClass( "custom-colorize" );
 
 				this.changer = $( "<button>", {
 					text: "change",