Stop warning about explicitly named modules for cythonize([Extension('modulename', ...)]).

Closes #2128.

Cython/Build/Dependencies.py

@@ -781,9 +781,7 @@ def create_extension_list(patterns, exclude=None, ctx=None, aliases=None, quiet=
             if '*' in name:
                 if module_name in explicit_modules:
                     continue
-            elif name != module_name:
-                print("Warning: Extension name '%s' does not match fully qualified name '%s' of '%s'" % (
-                    name, module_name, file))
+            elif name:
                 module_name = name
 
             if module_name == 'cython':