Fix syntax error in python package __init__ files

Libs/Scripting/Python/Core/Python/ctk/__init__.py.in

@@ -10,7 +10,6 @@ for kit in __kits_to_load:
   try:
     exec "from PythonQt.CTK%s import *" % (kit)
   except ImportError as detail:
-    global CTK_VERBOSE_IMPORT
     if CTK_VERBOSE_IMPORT: 
       print detail
    

Libs/Scripting/Python/Core/Python/qt/__init__.py

@@ -21,7 +21,6 @@ for kit in __kits_to_load:
    try:
      exec "from PythonQt.Qt%s import *" % (kit)
    except ImportError as detail:
-     global CTK_VERBOSE_IMPORT
      if CTK_VERBOSE_IMPORT:
        print detail