[caribou] tools: Remove unnecessary import statement for GLib

[Emmanuele Bassi <ebassi src gnome org>]

commit f540a9e4b52478588618ec60813f0b95e82bc0fc
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Fri Feb 17 16:30:09 2017 +0000

    tools: Remove unnecessary import statement for GLib
    
    The make_schema.py tool is not using GLib, nor importing data that
    requires the GLib introspection API.
    
    This causes a build failure in Continuous:
    
      File "../tools/make_schema.py", line 3, in <module>
            from gi.repository import GLib
    from gi.repository import GLib
    ImportErrorImportError: : No module named gi.repository
    No module named gi.repository

 tools/make_schema.py |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/tools/make_schema.py b/tools/make_schema.py
index 5633594..2d409f7 100755
--- a/tools/make_schema.py
+++ b/tools/make_schema.py
@@ -1,6 +1,5 @@
 #!/usr/bin/python
 
-from gi.repository import GLib
 import xml.dom.minidom
 
 import os, sys