autotest.py: remove unused frame parameter

Tools/autotest/autotest.py

@@ -497,7 +497,6 @@ def run_step(step):
         "gdbserver": opts.gdbserver,
         "breakpoints": opts.breakpoint,
         "disable_breakpoints": opts.disable_breakpoints,
-        "frame": opts.frame,
         "_show_test_timings": opts.show_test_timings,
         "force_ahrs_type": opts.force_ahrs_type,
         "num_aux_imus" : opts.num_aux_imus,
@@ -865,10 +864,6 @@ if __name__ == "__main__":
                       default=None,
                       type='int',
                       help='maximum runtime in seconds')
-    parser.add_option("--frame",
-                      type='string',
-                      default=None,
-                      help='specify frame type')
     parser.add_option("--show-test-timings",
                       action="store_true",
                       default=False,