staging: tidspbridge: Remove services.c and services.h

The services_init() and services_exit() functions don't do anything,
so they are removed, and as these are the only two functions defined
in services.c and services.h, then these files are also removed.

Signed-off-by: Ivan Gomez Castellanos <ivan.gomez@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>