MAINTAINERS: Remove snawrocki's git tree

There is already krzk/linux.git listed, which is currently used.

Signed-off-by: Petr Vorel <pvorel@suse.cz>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Link: https://lore.kernel.org/r/20231108085630.7767-1-pvorel@suse.cz


Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>