bitbake: knotty: kill duplicated import of 'time'

The duplicated import could result in an UnboundLocalError.

(Bitbake rev: a098cebd5c33ebd704efd35d9e655262283cbe1f)

Signed-off-by: Christopher Larson <chris_larson@mentor.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/ui/knotty.py

@@ -460,7 +460,6 @@ def main(server, eventHandler, tf = TerminalFilter):
             if ioerror.args[0] == 4:
                 pass
         except KeyboardInterrupt:
-            import time
             termfilter.clearFooter()
             if main.shutdown == 1:
                 print("\nSecond Keyboard Interrupt, stopping...\n")