MAINTAINERS: remove non existent input mt git tree
MAINTAINERS: remove non existent input mt git tree

The "INPUT MULTITOUCH (MT) PROTOCOL" entry git tree is not there on
git.kernel.org.

Signed-off-by: Baruch Siach <53ccad33e0625915318fb3bc832e5c1c413d1294@tkos.co.il>
Signed-off-by: Dmitry Torokhov <6b8646d310837fed93a129ed3c979b90c7f2674f@gmail.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs