Remove unused goog.require

src/ol/interaction/dragrotateandzoominteraction.js

@@ -1,6 +1,5 @@
 goog.provide('ol.interaction.DragRotateAndZoom');
 
-goog.require('goog.asserts');
 goog.require('goog.math.Vec2');
 goog.require('ol');
 goog.require('ol.ViewHint');

src/ol/interaction/dragrotateinteraction.js

@@ -1,6 +1,5 @@
 goog.provide('ol.interaction.DragRotate');
 
-goog.require('goog.asserts');
 goog.require('ol');
 goog.require('ol.ViewHint');
 goog.require('ol.events.ConditionType');

src/ol/interaction/interaction.js

@@ -3,7 +3,6 @@
 goog.provide('ol.interaction.Interaction');
 goog.provide('ol.interaction.InteractionProperty');
 
-goog.require('goog.asserts');
 goog.require('ol.MapBrowserEvent');
 goog.require('ol.Object');
 goog.require('ol.animation');

src/ol/interaction/pointerinteraction.js

@@ -1,6 +1,5 @@
 goog.provide('ol.interaction.Pointer');
 
-goog.require('goog.asserts');
 goog.require('goog.functions');
 goog.require('goog.object');
 goog.require('ol.MapBrowserEvent.EventType');