From 40c0a964ccbbc856deef6a1fe977df27d349522e Mon Sep 17 00:00:00 2001
From: John Bodley <4567245+john-bodley@users.noreply.github.com>
Date: Tue, 12 Jun 2018 12:10:53 -0700
Subject: [PATCH] [migrations] Cleaning up migration logic (#5167)

---
 superset/migrations/versions/f231d82b9b26_.py | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/superset/migrations/versions/f231d82b9b26_.py b/superset/migrations/versions/f231d82b9b26_.py
index 98379bac732aa..5d3acbef1d813 100644
--- a/superset/migrations/versions/f231d82b9b26_.py
+++ b/superset/migrations/versions/f231d82b9b26_.py
@@ -59,9 +59,6 @@ def downgrade():
         )
 
     # Remove the previous missing uniqueness constraints.
-    bind = op.get_bind()
-    insp = sa.engine.reflection.Inspector.from_engine(bind)
-
     for table, column in names.items():
         with op.batch_alter_table(table, naming_convention=conv) as batch_op:
             batch_op.drop_constraint(