fix: json schema error

Signed-off-by: Ryohsuke Mitsudome <ryohsuke.mitsudome@tier4.jp>

Author: mitsudome-r

map/autoware_map_loader/config/lanelet2_map_loader.param.yaml

@@ -5,8 +5,3 @@
     center_line_resolution: 5.0                 # [m]
     use_waypoints: true                         # "centerline" in the Lanelet2 map will be used as a "waypoints" tag.
     lanelet2_map_path: $(var lanelet2_map_path) # The lanelet2 map path
-    dummy_metadata:                             # When the dynamic map loading is true and the map is a single file, this parameter will generate the metadata.
-      min_x: 0.0
-      min_y: 0.0
-      x_resolution: 100000.0
-      y_resolution: 100000.0

map/autoware_map_loader/schema/lanelet2_map_loader.schema.json

@@ -9,7 +9,7 @@
         "enable_differential_map_loading": {
           "type": "string",
           "description": "Flag to enable loading of differential map",
-          "default": "true"
+          "default": "false"
         },
         "allow_unsupported_version": {
           "type": "boolean",
@@ -26,7 +26,7 @@
           "description": "If true, `centerline` in the Lanelet2 map will be used as a `waypoints` tag.",
           "default": true
         },
-        "lanelet2_map_paths_or_directory": {
+        "lanelet2_map_path": {
           "type": "string",
           "description": "The lanelet2 map path pointing to the .osm file or directory that contains multiple .osm files",
           "default": ""