MAINTAINERS: Remove bouncing kprobes maintainer

The kprobes MAINTAINERS entry includes anil.s.keshavamurthy@intel.com.
That address is bouncing. Remove it.

This still leaves three other listed maintainers.

Link: https://lore.kernel.org/all/20250808180124.7DDE2ECD@davehans-spike.ostc.intel.com/

Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Naveen N Rao <naveen@kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: linux-trace-kernel@vger.kernel.org
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>

Author: hansendc

MAINTAINERS

@@ -13686,7 +13686,6 @@ F:	scripts/Makefile.kmsan
 
 KPROBES
 M:	Naveen N Rao <naveen@kernel.org>
-M:	Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
 M:	"David S. Miller" <davem@davemloft.net>
 M:	Masami Hiramatsu <mhiramat@kernel.org>
 L:	linux-kernel@vger.kernel.org