MAINTAINERS: remove duplicate entry for Brad Bishop

Brad is listed as maintainer, so reviewer is implied.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: Id6ddbeb28da9b55a6b093c89904d98cb4292d4b4
diff --git a/MAINTAINERS b/MAINTAINERS
index 4a5508b..2f5538f 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -43,5 +43,4 @@
 -------------------------
 
 M:  Brad Bishop <bradleyb@fuzziesquirrel.com> <radsquirrel!>
-R:  Brad Bishop <bradleyb@fuzziesquirrel.com> <radsquirrel!>
 R:  Deepak Kodihalli <dkodihal@in.ibm.com> <dkodihal!>