Misc: remove py2 code

src/Mod/Assembly/Gui/AppAssemblyGui.cpp

@@ -68,16 +68,12 @@ void AssemblyGuiExport initAssemblyGui()
         return;
     }
 
-#if PY_MAJOR_VERSION >= 3
     static struct PyModuleDef AssemblyGuiAPIDef = {
         PyModuleDef_HEAD_INIT,
         "AssemblyGui", 0, -1, AssemblyGui_Import_methods,
         NULL, NULL, NULL, NULL
     };
     PyModule_Create(&AssemblyGuiAPIDef);
-#else
-    (void) Py_InitModule("AssemblyGui", AssemblyGui_Import_methods);   /* mod name, table ptr */
-#endif
     Base::Console().Log("Loading GUI of Assembly module... done\n");
 
     // directly load the module for usage in commands