There is no need to remove output file as it gets rewritten by
open(self.eventfile, 'w') anyway.
(Bitbake rev: 1fc9957837b7038dfb983217a3fcd880f143e3a4)
Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>