OWNERS: update

It's been quite some time since I've helped maintain gpio-monitor in any
meaningful way, and I don't intend to going forward, so it is time to
drop my name from the list.

I'm happy to help debug, provide historical insight or help out in some
other way; however, and will try to make the time if anyone reaches out.

Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
Change-Id: I5eff058d73242e04f99c5ca94ff763a27bfc5f40
diff --git a/OWNERS b/OWNERS
index 27fe81a..2ac58ce 100644
--- a/OWNERS
+++ b/OWNERS
@@ -32,13 +32,9 @@
 # data within them will be kept sorted.
 
 owners:
-- bradleyb@fuzziesquirrel.com
 
 reviewers:
 
 matchers:
 
 openbmc:
-- name: Brad Bishop
-  email: bradleyb@fuzziesquirrel.com
-  discord: radsquirrel