Remove unused var declarations

Author: STAH

select2.js

@@ -654,7 +654,7 @@ the specific language governing permissions and limitations under the Apache Lic
 
         // abstract
         init: function (opts) {
-            var results, search, resultsSelector = ".select2-results", disabled, readonly;
+            var results, search, resultsSelector = ".select2-results";
 
             // prepare options
             this.opts = opts = this.prepareOpts(opts);
@@ -726,7 +726,7 @@ the specific language governing permissions and limitations under the Apache Lic
             // if jquery.mousewheel plugin is installed we can prevent out-of-bounds scrolling of results via mousewheel
             if ($.fn.mousewheel) {
                 results.mousewheel(function (e, delta, deltaX, deltaY) {
-                    var top = results.scrollTop(), height;
+                    var top = results.scrollTop();
                     if (deltaY > 0 && top - deltaY <= 0) {
                         results.scrollTop(0);
                         killEvent(e);
@@ -852,7 +852,7 @@ the specific language governing permissions and limitations under the Apache Lic
 
             opts = $.extend({}, {
                 populateResults: function(container, results, query) {
-                    var populate,  data, result, children, id=this.opts.id;
+                    var populate, id=this.opts.id;
 
                     populate=function(results, container, depth) {
 
@@ -1009,8 +1009,6 @@ the specific language governing permissions and limitations under the Apache Lic
 
             sync = this.bind(function () {
 
-                var enabled, readonly, self = this;
-
                 // sync enabled state
                 var disabled = el.prop("disabled");
                 if (disabled === undefined) disabled = false;
@@ -1278,7 +1276,7 @@ the specific language governing permissions and limitations under the Apache Lic
                 scroll = "scroll." + cid,
                 resize = "resize."+cid,
                 orient = "orientationchange."+cid,
-                mask, maskCss;
+                mask;
 
             this.container.addClass("select2-dropdown-open").addClass("select2-container-active");
 
@@ -1501,7 +1499,6 @@ the specific language governing permissions and limitations under the Apache Lic
             var results = this.results,
                 more = results.find("li.select2-more-results"),
                 below, // pixels the element is below the scroll fold, below==0 is when the element is starting to be visible
-                offset = -1, // index of first element without data
                 page = this.resultsPage + 1,
                 self=this,
                 term=this.search.val(),
@@ -3019,7 +3016,7 @@ the specific language governing permissions and limitations under the Apache Lic
 
         // multi
         val: function (val, triggerChange) {
-            var oldData, self=this, changeDetails;
+            var oldData, self=this;
 
             if (arguments.length === 0) {
                 return this.getVal();