MAINTAINERS: remove myself as project maintainer
MAINTAINERS: remove myself as project maintainer

I'm moving on and don't know that I will have time to commit to the
project, therefore remove myself from the maintainers list.

Signed-off-by: Joshua Lock <9750fc34162235efa862f2505c1a01f735e97af7@intel.com>

01org/tpm2.0-tools,01org/tpm2.0-tools,01org/tpm2.0-tools