CP-5737: Add a function to silently ignore ENOENT while deleting files
CP-5737: Add a function to silently ignore ENOENT while deleting files

This function is useful to delete a file/directory and avoiding race
conditions if another process/thread do the same thing.

Signed-off-by: Frediano Ziglio <14cdc339e653bee16b9baab735d92664c449ffa1@citrix.com>

germanop/sm,malcolmcrossley/sm,pritha-srivastava/sm,pritha-srivastava/sm,geosharath/sm,djs55/sm,BobBall/sm,martinjorge/sm,germanop/sm,robertbreker/sm,djs55/sm,geosharath/sm,kostaslamda/sm,djs55/sm,chandrikas/sm,xapi-project/sm,martinjorge/sm,xapi-project/sm,malcolmcrossley/sm,chandrikas/sm,siddharthv/sm,malcolmcrossley/sm,kostaslamda/sm,BobBall/sm,BobBall/sm,pritha-srivastava/sm,germanop/sm,geosharath/sm,chandrikas/sm,siddharthv/sm,robertbreker/sm,robertbreker/sm,kostaslamda/sm,siddharthv/sm,martinjorge/sm,xapi-project/sm