Removing unused helper for now and utilizing helper function for opening base level

Signed-off-by: jckand-amzn <jckand@amazon.com>

AutomatedTesting/Gem/PythonTests/largeworlds/dyn_veg/EditorScripts/DynVegUtils_TempPrefabCreationWorks.py

@@ -35,6 +35,7 @@ def DynVegUtils_TempPrefabCreationWorks():
     import azlmbr.bus as bus
     import azlmbr.math as math
 
+    from Prefab.tests import PrefabTestUtils as prefab_test_utils
     from largeworlds.large_worlds_utils import editor_dynveg_test_helper as dynveg
     from editor_python_test_tools.utils import Report, Tracer
     from editor_python_test_tools.utils import TestHelper as helper
@@ -51,8 +52,7 @@ def DynVegUtils_TempPrefabCreationWorks():
                    }
 
         # 1) Open an existing simple level
-        helper.init_idle()
-        helper.open_level("Prefab", "Base")
+        prefab_test_utils.open_base_tests_level()
 
         # 2) Create each of the Mesh asset prefabs and validate that the prefab created successfully
         for prefab_filename, asset_path in mesh_prefabs.items():

AutomatedTesting/Gem/PythonTests/largeworlds/large_worlds_utils/editor_dynveg_test_helper.py

@@ -91,23 +91,6 @@ def create_mesh_surface_entity_with_slopes(name, center_point, uniform_scale):
     return surface_entity
 
 
-def create_empty_spawner(name, center_point, box_size_x, box_size_y, box_size_z):
-    # Create a vegetation area entity to use as our test vegetation spawner
-    spawner_entity = EditorEntity.create_editor_entity_at(center_point, name=name)
-    spawner_entity.add_components(["Vegetation Layer Spawner", "Box Shape", "Vegetation Asset List"])
-    if spawner_entity.id.IsValid():
-        print(f"'{spawner_entity.get_name()}' created")
-    spawner_entity.components[1].set_component_property_value("Box Shape|Box Configuration|Dimensions",
-                                                              math.Vector3(box_size_x, box_size_y, box_size_z))
-
-    # Set the vegetation area to an empty spawner
-    empty_spawner = vegetation.EmptyInstanceSpawner()
-    descriptor = spawner_entity.components[2].get_component_property_value("Configuration|Embedded Assets|[0]")
-    descriptor.spawner = empty_spawner
-    spawner_entity.components[2].set_component_property_value("Configuration|Embedded Assets|[0]", descriptor)
-    return spawner_entity
-
-
 def create_vegetation_area(name, center_point, box_size_x, box_size_y, box_size_z, dynamic_slice_asset_path):
     # Create a vegetation area entity to use as our test vegetation spawner
     spawner_entity = hydra.Entity(name)