Delete user account image when deleting user account

src/helpers/account_helper.rs

@@ -333,6 +333,9 @@ pub fn delete(user_id: &UserID) -> ResultBoxError {
     // Delete all user friends, including friendship requests
     friends_helper::delete_all_user(user_id)?;
 
+    // Delete user account image
+    delete_account_image(user_id)?;
+
     // TODO : continue work here
 
     Ok(())