bitbake: siggen: Drop pointless break statement

(Bitbake rev: 42809f6acb79e39042e81d54c28efb92b7481e44)

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

bitbake/lib/bb/siggen.py

@@ -40,7 +40,6 @@ def init(d):
     for sg in siggens:
         if desired == sg.name:
             return sg(d)
-            break
     else:
         logger.error("Invalid signature generator '%s', using default 'noop'\n"
                      "Available generators: %s", desired,