Fix revision d058: use util wrappers; rearrange ops

Rearrange ops in downgrade block to mirror ops in upgrade block in reverse
order:

upgrade:
- do A
- do B

downgrade:
- undo B
- undo A

lib/galaxy/model/migrations/alembic/versions_gxy/d0583094c8cd_add_quota_source_labels.py

@@ -5,7 +5,6 @@ Revises: c39f1de47a04
 Create Date: 2022-06-09 12:24:44.329038
 
 """
-from alembic import op
 from sqlalchemy import (
     Column,
     ForeignKey,
@@ -15,8 +14,14 @@ from sqlalchemy import (
 )
 
 from galaxy.model.migrations.util import (
+    add_column,
     add_unique_constraint,
+    create_index,
+    create_table,
     drop_column,
+    drop_index,
+    drop_table,
+    drop_unique_constraint,
 )
 
 # revision identifiers, used by Alembic.
@@ -27,9 +32,8 @@ depends_on = None
 
 
 def upgrade():
-    op.add_column("quota", Column("quota_source_label", String(32), default=None))
-
-    op.create_table(
+    add_column("quota", Column("quota_source_label", String(32), default=None))
+    create_table(
         "user_quota_source_usage",
         Column("id", Integer, primary_key=True),
         Column("user_id", Integer, ForeignKey("galaxy_user.id"), index=True),
@@ -38,12 +42,13 @@ def upgrade():
         Column("disk_usage", Numeric(15, 0)),
     )
     add_unique_constraint("uqsu_unique_label_per_user", "user_quota_source_usage", ["user_id", "quota_source_label"])
-    op.drop_index("ix_default_quota_association_type", "default_quota_association")
-    op.create_index("ix_quota_quota_source_label", "quota", ["quota_source_label"])
+    drop_index("ix_default_quota_association_type", "default_quota_association")
+    create_index("ix_quota_quota_source_label", "quota", ["quota_source_label"])
 
 
 def downgrade():
-    op.create_index("ix_default_quota_association_type", "default_quota_association", ["type"], unique=True)
-    op.drop_table("user_quota_source_usage")
-    op.drop_index("ix_quota_quota_source_label", "quota")
+    drop_index("ix_quota_quota_source_label", "quota")
+    create_index("ix_default_quota_association_type", "default_quota_association", ["type"], unique=True)
+    drop_unique_constraint("uqsu_unique_label_per_user", "user_quota_source_usage")
+    drop_table("user_quota_source_usage")
     drop_column("quota", "quota_source_label")