chore(dao): Replace save/overwrite with create/update respectively (#24467)

superset/daos/chart.py

@@ -14,7 +14,6 @@
 # KIND, either express or implied.  See the License for the
 # specific language governing permissions and limitations
 # under the License.
-# pylint: disable=arguments-renamed
 from __future__ import annotations
 
 import logging
@@ -54,18 +53,6 @@ class ChartDAO(BaseDAO[Slice]):
             db.session.rollback()
             raise ex
 
-    @staticmethod
-    def save(slc: Slice, commit: bool = True) -> None:
-        db.session.add(slc)
-        if commit:
-            db.session.commit()
-
-    @staticmethod
-    def overwrite(slc: Slice, commit: bool = True) -> None:
-        db.session.merge(slc)
-        if commit:
-            db.session.commit()
-
     @staticmethod
     def favorited_ids(charts: list[Slice]) -> list[FavStar]:
         ids = [chart.id for chart in charts]