kvm/mips: update MAINTAINERS

Aleksandar Markovic was last seen in Oct 2020 [1] and cannot be
reached for multiple days because of "Recipient inbox full".

[1] https://lore.kernel.org/all/1602103041-32017-4-git-send-email-aleksandar.qemu.devel@gmail.com/

Signed-off-by: Yu Zhao <[email protected]>
Acked-by: Huacai Chen <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>

Author: Yu Zhao

MAINTAINERS

@@ -11359,7 +11359,6 @@ F:	tools/testing/selftests/kvm/aarch64/
 
 KERNEL VIRTUAL MACHINE FOR MIPS (KVM/mips)
 M:	Huacai Chen <[email protected]>
-M:	Aleksandar Markovic <[email protected]>
 L:	[email protected]
 L:	[email protected]
 S:	Maintained