Move sub-namespace typedefs to typedefs.js

Here too there is one problem case.

src/ol/events/condition.js

@@ -6,16 +6,6 @@ goog.require('ol.MapBrowserEvent.EventType');
 goog.require('ol.MapBrowserPointerEvent');
 
 
-/**
- * A function that takes an {@link ol.MapBrowserEvent} and returns a
- * `{boolean}`. If the condition is met, true should be returned.
- *
- * @typedef {function(ol.MapBrowserEvent): boolean}
- * @api stable
- */
-ol.events.ConditionType;
-
-
 /**
  * Return `true` if only the alt-key is pressed, `false` otherwise (e.g. when
  * additionally the shift-key is pressed).