feat: remove enable_rtc from detection_area

Signed-off-by: Takayuki Murooka <[email protected]>

autoware_launch/config/planning/scenario_planning/lane_driving/behavior_planning/behavior_velocity_planner/detection_area.param.yaml

@@ -8,5 +8,4 @@
       state_clear_time: 2.0
       hold_stop_margin_distance: 0.0
       distance_to_judge_over_stop_line: 0.5
-      enable_rtc: false # if true, the scene modules should be approved by (request to cooperate)rtc function. if false, the module can be run without approval from rtc.
       suppress_pass_judge_when_stopping: false