Update detach.py

-Prune unnecessary code (thanks TingPing)

Author: Poorchop

detach.py

@@ -5,19 +5,13 @@
 __module_version__ = "0.1"
 __module_description__ = "Detach and close the current channel on ZNC with a simple /detach"
 
-detached = False
-
 
 def detach_cb(word, word_eol, userdata):
-    global detached
-
-    if detached or len(word) > 1:
+    if len(word) > 1:
         return
     else:
         chan = hexchat.get_info("channel")
-        detached = True
-        hexchat.command("DETACH {}".format(chan))
-        detached = False
+        hexchat.command("QUOTE DETACH {}".format(chan))
 
     return hexchat.EAT_ALL