* revert #49

Sortable.js

@@ -55,11 +55,6 @@
 		, slice = [].slice
 
 		, touchDragOverListeners = []
-
-		, pointerdown
-		, pointerup
-		, pointermove
-		, pointercancel
 	;
 
 
@@ -99,18 +94,6 @@
 			}
 		}
 
-		// Detect IE10/IE11+
-		if (window.onpointerdown !== undefined) {
-			pointerdown = 'pointerdown';
-			pointerup = 'pointerup';
-			pointermove = 'pointermove';
-			pointercancel = 'pointercancel';
-		} else {
-			pointerdown = 'MSPointerDown';
-			pointerup = 'MSPointerUp';
-			pointermove = 'MSPointerMove';
-			pointercancel = 'MSPointerCancel';
-		}
 
 		// Bind events
 		_on(el, 'add', options.onAdd);
@@ -125,10 +108,6 @@
 
 		_on(el, 'dragover', this._onDragOver);
 		_on(el, 'dragenter', this._onDragOver);
-		_on(el, pointerdown, this._onTapStart);
-
-		_css(el, 'touch-action', 'none');
-		_css(el, '-ms-touch-action', 'none');
 
 		touchDragOverListeners.push(this._onDragOver);
 	}
@@ -143,7 +122,7 @@
 		},
 
 
-		_onTapStart: function (evt/**Event|TouchEvent|PointerEvent*/){
+		_onTapStart: function (evt/**Event|TouchEvent*/){
 			var
 				  touch = evt.touches && evt.touches[0]
 				, target = (touch || evt).target
@@ -184,10 +163,6 @@
 					evt.preventDefault();
 				}
 
-				if (evt.type == 'pointerdown' || evt.type == 'MSPointerDown') {
-					this._onDragStart(tapEvt, true);
-					evt.preventDefault();
-				}
 
 				_on(this.el, 'dragstart', this._onDragStart);
 				_on(this.el, 'dragend', this._onDrop);
@@ -240,19 +215,22 @@
 		},
 
 
-		_onTouchMove: function (evt/**TouchEvent|PointerEvent*/){
+		_onTouchMove: function (evt/**TouchEvent*/){
 			if( tapEvt ){
 				var
 					  touch = evt.touches[0]
 					, dx = touch.clientX - tapEvt.clientX
 					, dy = touch.clientY - tapEvt.clientY
+					, translate3d = 'translate3d(' + dx + 'px,' + dy + 'px,0)'
 				;
 
 				touchEvt = touch;
-				_css(ghostEl, 'webkitTransform', 'translate3d('+dx+'px,'+dy+'px,0)');
-				_css(ghostEl, 'mozTransform', 'translate3d('+dx+'px,'+dy+'px,0)');
-				_css(ghostEl, 'msTransform', 'translate3d('+dx+'px,'+dy+'px,0)');
-				_css(ghostEl, 'transform', 'translate3d('+dx+'px,'+dy+'px,0)');
+
+				_css(ghostEl, 'webkitTransform', translate3d);
+				_css(ghostEl, 'mozTransform', translate3d);
+				_css(ghostEl, 'msTransform', translate3d);
+				_css(ghostEl, 'transform', translate3d);
+
 				evt.preventDefault();
 			}
 		},
@@ -297,9 +275,6 @@
 				_on(document, 'touchmove', this._onTouchMove);
 				_on(document, 'touchend', this._onDrop);
 				_on(document, 'touchcancel', this._onDrop);
-				_on(document, pointermove, this._onTouchMove);
-				_on(document, pointerup, this._onDrop);
-				_on(document, pointercancel, this._onDrop);
 
 				this._loopId = setInterval(this._emulateDragOver, 150);
 			}
@@ -378,9 +353,6 @@
 			_off(document, 'touchmove', this._onTouchMove);
 			_off(document, 'touchend', this._onDrop);
 			_off(document, 'touchcancel', this._onDrop);
-			_off(document, pointermove, this._onTouchMove);
-			_off(document, pointerup, this._onDrop);
-			_off(document, pointercancel, this._onDrop);
 
 
 			if( evt ){
@@ -437,7 +409,6 @@
 			_off(el, 'mousedown', this._onTapStart);
 			_off(el, 'touchstart', this._onTapStart);
 			_off(el, 'selectstart', this._onTapStart);
-			_off(el, pointerdown, this._onTapStart);
 
 			_off(el, 'dragover', this._onDragOver);
 			_off(el, 'dragenter', this._onDragOver);