createMeta no longer copying to new_class.prototype

I do not wholly recall why this was done initially (nor do I care to
research it, since it's not necessary now), but from the looks of it, it was
likely a kluge to handle a poor implementation of some feature.

This will help clean up a little, since it's rude to pollute a prototype
unnecessarily.

lib/ClassBuilder.js

@@ -1255,27 +1255,13 @@ function createMeta( func, cparent )
     // copy the parent prototype's metadata if it exists (inherit metadata)
     if ( parent_meta )
     {
-        func[ _priv ].meta = util.clone( parent_meta, true );
+        return func[ _priv ].meta = util.clone( parent_meta, true );
-    }
-    else
-    {
-        // create empty
-        func[ _priv ].meta = {
-            implemented: [],
-        };
     }
 
-    // TODO: this should be done elsewhere
+    // create empty
-    if ( !func.prototype[ _priv ] )
+    return func[ _priv ].meta = {
-    {
+        implemented: [],
-        func.prototype[ _priv ] = {};
+    };
-    }
-
-    // store the metadata in the prototype as well (inconsiderable overhead;
-    // it's just a reference)
-    func.prototype[ _priv ].meta = func[ _priv ].meta;
-
-    return func[ _priv ].meta;
 }