bitbake: cooker: don't remove event file

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>

bitbake/lib/bb/cooker.py

@@ -131,12 +131,6 @@ class EventLogWriteHandler:
             self.event_queue = []
 
         def init_file(self):
-            try:
-                # delete the old log
-                os.remove(self.eventfile)
-            except:
-                pass
-
             # write current configuration data
             with open(eventfile, "w") as f:
                 f.write("%s\n" % json.dumps({ "allvariables" : self.cooker.getAllKeysWithFlags(["doc", "func"])}))