Move sub-namespace typedefs to typedefs.js

Here too there is one problem case.

src/ol/source/urltilesource.js

@@ -7,25 +7,6 @@ goog.require('ol.source.Tile');
 goog.require('ol.source.TileEvent');
 
 
-/**
- * @typedef {{attributions: (ol.AttributionLike|undefined),
- *            cacheSize: (number|undefined),
- *            extent: (ol.Extent|undefined),
- *            logo: (string|olx.LogoOptions|undefined),
- *            opaque: (boolean|undefined),
- *            projection: ol.proj.ProjectionLike,
- *            state: (ol.source.State|undefined),
- *            tileGrid: (ol.tilegrid.TileGrid|undefined),
- *            tileLoadFunction: ol.TileLoadFunctionType,
- *            tilePixelRatio: (number|undefined),
- *            tileUrlFunction: (ol.TileUrlFunctionType|undefined),
- *            url: (string|undefined),
- *            urls: (Array.<string>|undefined),
- *            wrapX: (boolean|undefined)}}
- */
-ol.source.UrlTileOptions;
-
-
 /**
  * @classdesc
  * Base class for sources providing tiles divided into a tile grid over http.