Datepicker: Remove unwanted keyboard shortcut

Remove shortcut for closing the calendar and erasing the date (CTRL+END).
Remove unwanted CTRL+HOME shortcut and support for enter key on input.

Author: fnagel

ui/datepicker.js

@@ -131,9 +131,6 @@ $.widget( "ui.datepicker", {
 					this.close( event );
 				}
 				break;
-			case $.ui.keyCode.ENTER:
-				this.calendarInstance._handleKeydown( event );
-				break;
 			case $.ui.keyCode.DOWN:
 			case $.ui.keyCode.UP:
 				clearTimeout( this.closeTimer );
@@ -142,26 +139,6 @@ $.widget( "ui.datepicker", {
 					this.calendarInstance.grid.focus();
 				}, 1 );
 				break;
-			case $.ui.keyCode.HOME:
-				if ( event.ctrlKey ) {
-					this.valueAsDate( new Date() );
-					event.preventDefault();
-					if ( this.isOpen ) {
-							this.calendarInstance.refresh();
-					} else {
-						this.open( event );
-					}
-				}
-				break;
-			case $.ui.keyCode.END:
-				if ( event.ctrlKey ) {
-					this.element.val( "" );
-					event.preventDefault();
-					if ( this.isOpen ) {
-						this.close( event );
-					}
-				}
-				break;
 			}
 		},
 		keyup: function() {