fix(rviz): remove StringStampedOverlayDisplay reference (#1001)

Signed-off-by: M. Fatih Cırıt <mfc@leodrive.ai>

Author: xmfcx

autoware_launch/rviz/autoware.rviz

@@ -3608,22 +3608,6 @@ Visualization Manager:
                   Value: true
               Enabled: true
               Name: Objects Of Interest
-            - Class: rviz_plugins/StringStampedOverlayDisplay
-              Enabled: true
-              Font Size: 15
-              Left: 1024
-              Max Letter Num: 100
-              Name: StringStampedOverlayDisplay
-              Text Color: 25; 255; 240
-              Top: 128
-              Topic:
-                Depth: 5
-                Durability Policy: Volatile
-                History Policy: Keep Last
-                Reliability Policy: Reliable
-                Value: /planning/scenario_planning/lane_driving/behavior_planning/behavior_path_planner/debug/internal_state
-              Value: true
-              Value height offset: 0
           Enabled: true
           Name: Planning
         - Class: rviz_common/Group