MAINTAINERS: remove the MTRR entry

I haven't seen Richard doing MTRR related work for quite some time, and
the "X86 ARCHITECTURE" entry in MAINTAINERS already covers the people
currently responsible for this code.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

MAINTAINERS

@@ -2598,13 +2598,6 @@ L:	https://tango.0pointer.de/mailman/listinfo/s270-linux
 W:	http://0pointer.de/lennart/tchibo.html
 S:	Maintained
 
-MTRR AND SIMILAR SUPPORT [i386]
-P:	Richard Gooch
-M:	rgooch@atnf.csiro.au
-L:	linux-kernel@vger.kernel.org
-W:	http://www.atnf.csiro.au/~rgooch/linux/kernel-patches.html
-S:	Maintained
-
 MULTIMEDIA CARD (MMC), SECURE DIGITAL (SD) AND SDIO SUBSYSTEM
 P:	Pierre Ossman
 M:	drzeus-mmc@drzeus.cx