bitbake: server/bitbake: Remove launchUI method

With the removal of the none server type, we can remove the launchUI
method and simplify the code slightly.

(Bitbake rev: 9bef2f2dd0bcaa59528ebcb3c1ce053b7dff1ec6)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/server/xmlrpc.py

@@ -288,8 +288,3 @@ class BitBakeServer(object):
     def establishConnection(self):
         self.connection = BitBakeServerConnection(self.serverinfo)
         return self.connection
-
-    def launchUI(self, uifunc, *args):
-        return uifunc(*args)
-
-