CHROMIUM: media: camx: remove unused total_rdi_port variables

Suppress warning (reported by Stephen):
cam_ife_hw_mgr.c:2190:37: warning: variable 'total_rdi_port'
    set but not used
cam_ife_hw_mgr.c:2042:37: warning: variable 'total_rdi_port'
    set but not used

UPSTREAM-TASK=b:274966069
BUG=none
TEST=compile tested

Change-Id: Iddf3760ffd9e31c097fba8751ef25e5aa4ecede8
Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/5904571


Reviewed-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Mateusz Urbańczyk <urbanczyk@google.com>