Remove obsolete email address from MAINTAINERS.
Signed-off-by: Anatolij Gustschin Cc: Masahiro Yamada Cc: Tom Rini
MCX BOARD M: Anatolij Gustschin <agust@denx.de> S: Maintained F: board/htkw/mcx/ F: include/configs/mcx.h F: configs/mcx_defconfig
