refactor(uiSelectChoices) remove setActiveItem refs

src/uiSelectChoicesDirective.js

@@ -47,16 +47,14 @@ uis.directive('uiSelectChoices',
         choices.attr('ng-repeat', $select.parserResult.repeatExpression(groupByExp))
             .attr('ng-if', '$select.open'); //Prevent unnecessary watches when dropdown is closed
         if ($window.document.addEventListener) {  //crude way to exclude IE8, specifically, which also cannot capture events
-          choices.attr('ng-mouseenter', '$select.setActiveItem('+$select.parserResult.itemName +')')
-              .attr('ng-click', '$select.select(' + $select.parserResult.itemName + ',$select.skipFocusser,$event)');
+          choices.attr('ng-click', '$select.select(' + $select.parserResult.itemName + ',$select.skipFocusser,$event)');
         }
 
         var rowsInner = element.querySelectorAll('.ui-select-choices-row-inner');
         if (rowsInner.length !== 1) throw uiSelectMinErr('rows', "Expected 1 .ui-select-choices-row-inner but got '{0}'.", rowsInner.length);
         rowsInner.attr('uis-transclude-append', ''); //Adding uisTranscludeAppend directive to row element after choices element has ngRepeat
         if (!$window.document.addEventListener) {  //crude way to target IE8, specifically, which also cannot capture events - so event bindings must be here
-          rowsInner.attr('ng-mouseenter', '$select.setActiveItem('+$select.parserResult.itemName +')')
-              .attr('ng-click', '$select.select(' + $select.parserResult.itemName + ',$select.skipFocusser,$event)');
+          rowsInner.attr('ng-click', '$select.select(' + $select.parserResult.itemName + ',$select.skipFocusser,$event)');
         }
 
         $compile(element, transcludeFn)(scope); //Passing current transcludeFn to be able to append elements correctly from uisTranscludeAppend