[chrome-gnome-shell/feature/python3] pylint: remove useless global statements

[Yuri Konotopov <ykonotopov src gnome org>]

commit 212f654d51a8555eb105dfbb84200c5a0cf4a6f1
Author: Yuri Konotopov <ykonotopov gmail com>
Date:   Sun Mar 27 13:02:23 2016 +0300

    pylint: remove useless global statements

 connector/gs-chrome-connector.py |    7 +------
 1 files changed, 1 insertions(+), 6 deletions(-)
---
diff --git a/connector/gs-chrome-connector.py b/connector/gs-chrome-connector.py
index f48e457..e0d6747 100755
--- a/connector/gs-chrome-connector.py
+++ b/connector/gs-chrome-connector.py
@@ -64,8 +64,6 @@ def send_error(message):
     send_message({'success': False, 'message': message})
 
 def debug(message):
-    global DEBUG_ENABLED
-
     if DEBUG_ENABLED:
         logError(message)
 
@@ -88,7 +86,6 @@ def dbus_call_response(method, parameters, resultProperty):
 
 # Thread that reads messages from the webapp.
 def read_thread_func(proxy, mainLoop):
-    global mutex
     settings = Gio.Settings.new(SHELL_SCHEMA)
 
     while mainLoop.is_running():
@@ -190,8 +187,6 @@ def read_thread_func(proxy, mainLoop):
 
 
 def on_shell_signal(d_bus_proxy, sender_name, signal_name, parameters):
-    global mutex
-
     if signal_name == 'ExtensionStatusChanged':
         mutex.acquire()
         debug('[%d] Signal: to %s' % (os.getpid(), signal_name))
@@ -201,7 +196,7 @@ def on_shell_signal(d_bus_proxy, sender_name, signal_name, parameters):
 
 
 def on_shell_appeared(connection, name, name_owner):
-    global mutex, watcherConnected
+    global watcherConnected
 
     # Things get broken if we send 1st signal
     if not watcherConnected: