MAINTAINERS: Update entry for rtl8187

As Herton Ronaldo Krzesinski is no longer active, remove him as maintainer
for rtl8187.

The git tree entry is also removed.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Link: https://lore.kernel.org/r/20230804222438.16076-2-Larry.Finger@lwfinger.netSigned-off-by: Johannes Berg <johannes.berg@intel.com>

MAINTAINERS

@@ -18498,13 +18498,11 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-testing.g
 F:	drivers/net/wireless/realtek/rtl818x/rtl8180/
 
 RTL8187 WIRELESS DRIVER
-M:	Herton Ronaldo Krzesinski <herton@canonical.com>
-M:	Hin-Tak Leung <htl10@users.sourceforge.net>
+M:	Hin-Tak Leung <hintak.leung@gmail.com>
 M:	Larry Finger <Larry.Finger@lwfinger.net>
 L:	linux-wireless@vger.kernel.org
 S:	Maintained
 W:	https://wireless.wiki.kernel.org/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-testing.git
 F:	drivers/net/wireless/realtek/rtl818x/rtl8187/
 
 RTL8XXXU WIRELESS DRIVER (rtl8xxxu)