Move sub-namespace typedefs to typedefs.js

Here too there is one problem case.

src/ol/format/wfsformat.js

@@ -82,26 +82,6 @@ ol.format.WFS.FEATURE_PREFIX = 'feature';
 ol.format.WFS.XMLNS = 'http://www.w3.org/2000/xmlns/';
 
 
-/**
- * Number of features; bounds/extent.
- * @typedef {{numberOfFeatures: number,
- *            bounds: ol.Extent}}
- * @api stable
- */
-ol.format.WFS.FeatureCollectionMetadata;
-
-
-/**
- * Total deleted; total inserted; total updated; array of insert ids.
- * @typedef {{totalDeleted: number,
- *            totalInserted: number,
- *            totalUpdated: number,
- *            insertIds: Array.<string>}}
- * @api stable
- */
-ol.format.WFS.TransactionResponse;
-
-
 /**
  * @const
  * @type {string}