Do not add OWNERS to bingo's .gitignore

bingo overwrites the .gitignore file, so it can create an unexpected
merge conflict.

Leave the OWNERS file in place (unless we discover that it is also
a problem later).

Signed-off-by: Todd Short <tshort@redhat.com>

Author: tmshort

.bingo/.gitignore

@@ -9,6 +9,5 @@
 !README.md
 !Variables.mk
 !variables.env
-!OWNERS
 
 *tmp.mod