Datepicker: Removed click handling for month and year dropdowns. Fixes #6198 - Datepicker Month and Year dropdowns in IE have to click twice.

Thanks jdufresne
(cherry picked from commit 70687f7)

Author: scottgonzalez

ui/jquery.ui.datepicker.js

@@ -878,26 +878,13 @@ $.extend(Datepicker.prototype, {
 	_selectMonthYear: function(id, select, period) {
 		var target = $(id);
 		var inst = this._getInst(target[0]);
-		inst._selectingMonthYear = false;
 		inst['selected' + (period == 'M' ? 'Month' : 'Year')] =
 		inst['draw' + (period == 'M' ? 'Month' : 'Year')] =
 			parseInt(select.options[select.selectedIndex].value,10);
 		this._notifyChange(inst);
 		this._adjustDate(target);
 	},
 
-	/* Restore input focus after not changing month/year. */
-	_clickMonthYear: function(id) {
-		var target = $(id);
-		var inst = this._getInst(target[0]);
-		if (inst.input && inst._selectingMonthYear) {
-			setTimeout(function() {
-				inst.input.focus();
-			}, 0);
-		}
-		inst._selectingMonthYear = !inst._selectingMonthYear;
-	},
-
 	/* Action for selecting a day. */
 	_selectDay: function(id, month, year, td) {
 		var target = $(id);
@@ -1603,7 +1590,6 @@ $.extend(Datepicker.prototype, {
 			var inMaxYear = (maxDate && maxDate.getFullYear() == drawYear);
 			monthHtml += '<select class="ui-datepicker-month" ' +
 				'onchange="DP_jQuery_' + dpuuid + '.datepicker._selectMonthYear(\'#' + inst.id + '\', this, \'M\');" ' +
-				'onclick="DP_jQuery_' + dpuuid + '.datepicker._clickMonthYear(\'#' + inst.id + '\');"' +
 			 	'>';
 			for (var month = 0; month < 12; month++) {
 				if ((!inMinYear || month >= minDate.getMonth()) &&
@@ -1637,7 +1623,6 @@ $.extend(Datepicker.prototype, {
 				endYear = (maxDate ? Math.min(endYear, maxDate.getFullYear()) : endYear);
 				inst.yearshtml += '<select class="ui-datepicker-year" ' +
 					'onchange="DP_jQuery_' + dpuuid + '.datepicker._selectMonthYear(\'#' + inst.id + '\', this, \'Y\');" ' +
-					'onclick="DP_jQuery_' + dpuuid + '.datepicker._clickMonthYear(\'#' + inst.id + '\');"' +
 					'>';
 				for (; year <= endYear; year++) {
 					inst.yearshtml += '<option value="' + year + '"' +