diff --git a/superset/migrations/versions/abe27eaf93db_add_extra_config_column_to_alerts.py b/superset/migrations/versions/abe27eaf93db_add_extra_config_column_to_alerts.py
deleted file mode 100644
index c0cce0ac9e650..0000000000000
--- a/superset/migrations/versions/abe27eaf93db_add_extra_config_column_to_alerts.py
+++ /dev/null
@@ -1,50 +0,0 @@
-# Licensed to the Apache Software Foundation (ASF) under one
-# or more contributor license agreements.  See the NOTICE file
-# distributed with this work for additional information
-# regarding copyright ownership.  The ASF licenses this file
-# to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance
-# with the License.  You may obtain a copy of the License at
-#
-#   http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing,
-# software distributed under the License is distributed on an
-# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-# KIND, either express or implied.  See the License for the
-# specific language governing permissions and limitations
-# under the License.
-"""add_extra_config_column_to_alerts
-
-Revision ID: abe27eaf93db
-Revises: aea15018d53b
-Create Date: 2021-12-02 12:03:20.691171
-
-"""
-
-# revision identifiers, used by Alembic.
-revision = "abe27eaf93db"
-down_revision = "aea15018d53b"
-
-import sqlalchemy as sa
-from alembic import op
-from sqlalchemy import String
-from sqlalchemy.sql import column, table
-
-connection = op.get_bind()
-
-report_schedule = table("report_schedule", column("extra", String))
-
-
-def upgrade():
-    with op.batch_alter_table("report_schedule") as batch_op:
-        batch_op.add_column(
-            sa.Column("extra", sa.Text(), nullable=True, default="{}",),
-        )
-    connection.execute(report_schedule.update().values({"extra": "{}"}))
-    with op.batch_alter_table("report_schedule") as batch_op:
-        batch_op.alter_column("extra", existing_type=sa.Text(), nullable=False)
-
-
-def downgrade():
-    op.drop_column("report_schedule", "extra")
diff --git a/superset/models/alerts.py b/superset/models/alerts.py
index 163dcf027de0e..85bad4e16d74b 100644
--- a/superset/models/alerts.py
+++ b/superset/models/alerts.py
@@ -126,7 +126,7 @@ def __str__(self) -> str:
 
     @property
     def pretty_config(self) -> str:
-        """String representing the comparison that will trigger a validator"""
+        """ String representing the comparison that will trigger a validator """
         config = json.loads(self.validator_config)
 
         if self.validator_type.lower() == "operator":
diff --git a/superset/models/reports.py b/superset/models/reports.py
index a0dc59917a42c..6ed769dd49400 100644
--- a/superset/models/reports.py
+++ b/superset/models/reports.py
@@ -145,9 +145,6 @@ class ReportSchedule(Model, AuditMixinNullable):
     # (Alerts/Reports) Unlock a possible stalled working state
     working_timeout = Column(Integer, default=60 * 60 * 1)
 
-    # Store the selected dashboard tabs etc.
-    extra = Column(Text, default="{}")
-
     def __repr__(self) -> str:
         return str(self.name)