[gobject-introspection] giscanner: remove unneeded isinstance check

[Colin Walters <walters src gnome org>]

commit d0c2f49a87a9b8db6aaed367544fabd612b0dc0b
Author: Dieter Verfaillie <dieterv optionexplicit be>
Date:   Sat Sep 7 00:16:17 2013 +0200

    giscanner: remove unneeded isinstance check
    
    _write_class() is only ever called with ast.Class
    and ast.Interface nodes so the check served no purpose
    other than contribute to global warming...

 giscanner/girwriter.py |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)
---
diff --git a/giscanner/girwriter.py b/giscanner/girwriter.py
index 2f3d59c..78ad7e4 100644
--- a/giscanner/girwriter.py
+++ b/giscanner/girwriter.py
@@ -436,9 +436,8 @@ class GIRWriter(XMLWriter):
             if isinstance(node, ast.Class):
                 for method in sorted(node.constructors):
                     self._write_constructor(method)
-            if isinstance(node, (ast.Class, ast.Interface)):
-                for method in sorted(node.static_methods):
-                    self._write_static_method(method)
+            for method in sorted(node.static_methods):
+                self._write_static_method(method)
             for vfunc in sorted(node.virtual_methods):
                 self._write_vfunc(vfunc)
             for method in sorted(node.methods):