Dialog: Removed the height() tinkering which stops the dialog from sh…

…rinking. Fixes #5916 - Dialog: shrinks on drag in IE in standards mode, worse in quirksmode.

ui/jquery.ui.dialog.js

@@ -373,8 +373,7 @@ $.widget("ui.dialog", {
	_makeDraggable: function() {
		var self = this,
			options = self.options,
			doc = $( document ),
			heightBeforeDrag;
			doc = $( document );

		function filteredUi( ui ) {
			return {
@@ -388,9 +387,7 @@ $.widget("ui.dialog", {
			handle: ".ui-dialog-titlebar",
			containment: "document",
			start: function( event, ui ) {
				heightBeforeDrag = options.height === "auto" ? "auto" : $( this ).height();
				$( this )
					.height( $( this ).height() )
					.addClass( "ui-dialog-dragging" );
				self._trigger( "dragStart", event, filteredUi( ui ) );
			},
@@ -403,8 +400,7 @@ $.widget("ui.dialog", {
					ui.position.top - doc.scrollTop()
				];
				$( this )
					.removeClass( "ui-dialog-dragging" )
					.height( heightBeforeDrag );
					.removeClass( "ui-dialog-dragging" );
				self._trigger( "dragStop", event, filteredUi( ui ) );
				$.ui.dialog.overlay.resize();
			}