x86: Remove Graeme Russ from the git alias file

As requested, remove Graeme's email address.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Bin Meng <bmeng.cn@gmail.com>

doc/git-mailrc

@@ -20,7 +20,6 @@ alias angelo_ts      Angelo Dureghello <angelo@sysam.it>
 alias bmeng          Bin Meng <bmeng.cn@gmail.com>
 alias danielschwierzeck Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
 alias galak          Kumar Gala <galak@kernel.crashing.org>
-alias gruss          Graeme Russ <graeme.russ@gmail.com>
 alias hs             Heiko Schocher <hs@denx.de>
 alias ijc            Ian Campbell <ijc+uboot@hellion.org.uk>
 alias iwamatsu       Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
@@ -112,7 +111,7 @@ alias sparc          uboot, Francois Retief <fgretief@spaceteq.co.za>
 alias superh         uboot, iwamatsu
 alias sh             superh
 
-alias x86            uboot, sjg, gruss, bmeng
+alias x86            uboot, sjg, bmeng
 
 # Subsystem aliases
 alias dm             uboot, sjg