Drop pyGTK leftovers

It is no more used, so drop any leftovers of it.

README.md

@@ -25,7 +25,6 @@ xdgmenumaker currently supports generating menus for:
 **xdgmenumaker** requires:
 * Python 3.x
 * pyxdg
-* pygobject and gobject-instrospection
 * Pillow (optional)
 
 

man/xdgmenumaker.t2t

@@ -40,9 +40,8 @@ according to the running user locale settings.
 - windowmaker
 
 
-**xdgmenumaker** requires //Python 3.x//, //pygobject// and
-//gobject-instrospection//, as well as //pyxdg//. //Pillow// is an optional
-dependency (used by the **--max-icon-size** option).
+**xdgmenumaker** requires //Python 3.x//, as well as //pyxdg//.
+//Pillow// is an optional dependency (used by the **--max-icon-size** option).
 
 
 = OPTIONS =

src/xdgmenumaker

@@ -14,11 +14,6 @@ from operator import attrgetter
 
 import configparser as cp
 
-# Load the gtk compatibility layer
-from gi import pygtkcompat
-pygtkcompat.enable()
-pygtkcompat.enable_gtk(version='3.0')
-import gtk
 
 seticon = False
 iconsize = 16