remove default width of 25px from multiselect's search input

Author: ivaynberg

select2.js

@@ -1626,7 +1626,7 @@
                 "    <ul class='select2-choices'>",
                 //"<li class='select2-search-choice'><span>California</span><a href="javascript:void(0)" class="select2-search-choice-close"></a></li>" ,
                 "  <li class='select2-search-field'>" ,
-                "    <input type='text' autocomplete='off' style='width: 25px;' class='select2-input'>" ,
+                "    <input type='text' autocomplete='off' class='select2-input'>" ,
                 "  </li>" ,
                 "</ul>" ,
                 "<div class='select2-drop select2-drop-multi' style='display:none;'>" ,