Simplify default export

src/ol/interaction/DrawEventType.js

@@ -1,10 +1,11 @@
 /**
  * @module ol/interaction/DrawEventType
  */
+
 /**
  * @enum {string}
  */
-var _ol_interaction_DrawEventType_ = {
+export default {
   /**
    * Triggered upon feature draw start
    * @event ol.interaction.Draw.Event#drawstart
@@ -18,5 +19,3 @@ var _ol_interaction_DrawEventType_ = {
    */
   DRAWEND: 'drawend'
 };
-
-export default _ol_interaction_DrawEventType_;

src/ol/interaction/ExtentEventType.js

@@ -1,10 +1,11 @@
 /**
  * @module ol/interaction/ExtentEventType
  */
+
 /**
  * @enum {string}
  */
-var _ol_interaction_ExtentEventType_ = {
+export default {
   /**
    * Triggered after the extent is changed
    * @event ol.interaction.Extent.Event#extentchanged
@@ -12,5 +13,3 @@ var _ol_interaction_ExtentEventType_ = {
    */
   EXTENTCHANGED: 'extentchanged'
 };
-
-export default _ol_interaction_ExtentEventType_;

src/ol/interaction/ModifyEventType.js

@@ -1,10 +1,11 @@
 /**
  * @module ol/interaction/ModifyEventType
  */
+
 /**
  * @enum {string}
  */
-var _ol_interaction_ModifyEventType_ = {
+export default {
   /**
    * Triggered upon feature modification start
    * @event ol.interaction.Modify.Event#modifystart
@@ -18,5 +19,3 @@ var _ol_interaction_ModifyEventType_ = {
    */
   MODIFYEND: 'modifyend'
 };
-
-export default _ol_interaction_ModifyEventType_;

src/ol/interaction/TranslateEventType.js

@@ -1,10 +1,11 @@
 /**
  * @module ol/interaction/TranslateEventType
  */
+
 /**
  * @enum {string}
  */
-var _ol_interaction_TranslateEventType_ = {
+export default {
   /**
    * Triggered upon feature translation start.
    * @event ol.interaction.Translate.Event#translatestart
@@ -24,5 +25,3 @@ var _ol_interaction_TranslateEventType_ = {
    */
   TRANSLATEEND: 'translateend'
 };
-
-export default _ol_interaction_TranslateEventType_;