Revert "ANDROID: FUSE OWNERS pointing to android-mainline OWNERS"

This reverts commit fdbfae03. This
OWNERS file is not visible in the partner gerrit, so it's causing
issues. Revert until the gerrit team resolves this.

Bug: 197928983
Change-Id: I4845507c8e95506d2e1b76dfc58d74ee6ff7acbf
Signed-off-by: J. Avila <elavila@google.com>