MAINTAINERS: delete email for Shiraz Hashim

The email address bounced. I couldn't find a newer one in recent git
history (last activity 9 years ago), so delete this email entry.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20250331190731.5094-2-wsa+renesas@sang-engineering.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Author: Wolfram Sang

MAINTAINERS

@@ -22826,7 +22826,6 @@ F:	drivers/accessibility/speakup/
 
 SPEAR PLATFORM/CLOCK/PINCTRL SUPPORT
 M:	Viresh Kumar <vireshk@kernel.org>
-M:	Shiraz Hashim <shiraz.linux.kernel@gmail.com>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 L:	soc@lists.linux.dev
 S:	Maintained