Remove unneeded goog.provides/requires for typedefs

In general, typedefs do not need and should not have goog.require/provide

src/ol/source/wmtssource.js

@@ -4,7 +4,6 @@ goog.provide('ol.source.WMTSRequestEncoding');
 goog.require('goog.asserts');
 goog.require('goog.uri.utils');
 goog.require('ol.TileUrlFunction');
-goog.require('ol.TileUrlFunctionType');
 goog.require('ol.array');
 goog.require('ol.extent');
 goog.require('ol.object');