platform/rdv1mc: remove TZC bypass model parameters

The TZC controllers were bypassed during the platform bringup stage by
using model parameters. Now that the TZC programming in board support
of RD-V1-MC platform is in place, the model parameters used to bypass
the TZC can be removed from the run_model.sh file.

Signed-off-by: Thomas Abraham <thomas.abraham@arm.com>
Change-Id: Id333a92252b25178e16b0db67198a1c903fc64e9