migrations: drop units.v1_path

Change-Id: Ic2d0ee5f9dc6298f285fdcd6276e535e7c8181ec
Reviewed-on: https://go-review.googlesource.com/c/pkgsite/+/284573
Run-TryBot: Julie Qiu <julie@golang.org>
TryBot-Result: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jonathan Amsterdam <jba@google.com>
Trust: Julie Qiu <julie@golang.org>

migrations/000061_drop_units_v1_path.down.sql

@@ -0,0 +1,10 @@
+-- Copyright 2021 The Go Authors. All rights reserved.
+-- Use of this source code is governed by a BSD-style
+-- license that can be found in the LICENSE file.
+
+BEGIN;
+
+ALTER TABLE units ADD COLUMN v1_path TEXT;
+CREATE INDEX units_v1_path_key ON units(v1_path);
+
+END;

migrations/000061_drop_units_v1_path.up.sql

@@ -0,0 +1,9 @@
+-- Copyright 2021 The Go Authors. All rights reserved.
+-- Use of this source code is governed by a BSD-style
+-- license that can be found in the LICENSE file.
+
+BEGIN;
+
+ALTER TABLE units DROP COLUMN v1_path;
+
+END;