Fix T60591: Register/Unregister issue in Object Scatter/Oscurart Tools

Referenced by issue blender/blender#60591, some addons result: ValueError: register_class(...): already registered as a subclass

object_scatter/__init__.py

@@ -38,4 +38,4 @@ def register():
 
 def unregister():
     ui.unregister()
-    operator.register()
+    operator.unregister()

oscurart_tools/__init__.py

@@ -162,7 +162,6 @@ def register():
                                                                               
 
 def unregister():
-    del bpy.types.Scene.SearchAndSelectOt
     bpy.types.VIEW3D_MT_edit_mesh_specials.remove(menu_funcMesh)
     bpy.types.IMAGE_MT_uvs_specials.remove(menu_funcImage)
     bpy.types.VIEW3D_MT_object_specials.remove(menu_funcObject)