Staging: w35und: Cleanup the mlmetxrx_f.h header file

This patch removes the unused MLMEProcThread and MLMEReturnPacket
declarations and indents the header file.

Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>