xfstests: kill useless test owner fields

xfstests: kill useless test owner fields

Back many years ago, the owner field was used to email the test
owner when auto-qa failed that test. It is not needed anymore - if
you want to know who wrote the test, look it up in git....

Script used was:

$ sed -i -e "/^# creator/d" -e "/^owner/d" [0-3][0-9][0-9]

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Phil White <pwhite@sgi.com>
[rjohnston@sgi.com added TOT changes]
Signed-off-by: Rich Johnston <rjohnston@sgi.com>