From 3290fb870c1b48618f859153d8c0b76c5adb2dfc Mon Sep 17 00:00:00 2001
From: Than McIntosh <thanm@google.com>
Date: Wed, 8 Nov 2023 10:45:34 -0500
Subject: [PATCH] cmd/compile/internal/types: remove dead function

Remove the function CleanroomDo, which is no longer being
used anywhere.

Change-Id: Ie148005793b004bf63ca996101d08c30b87f8575
Reviewed-on: https://go-review.googlesource.com/c/go/+/540776
Reviewed-by: Robert Griesemer <gri@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
---
 src/cmd/compile/internal/types/pkg.go | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/src/cmd/compile/internal/types/pkg.go b/src/cmd/compile/internal/types/pkg.go
index 8223d801359..c6ce7889afb 100644
--- a/src/cmd/compile/internal/types/pkg.go
+++ b/src/cmd/compile/internal/types/pkg.go
@@ -129,12 +129,3 @@ func InternString(b []byte) string {
 	internedStringsmu.Unlock()
 	return s
 }
-
-// CleanroomDo invokes f in an environment with no preexisting packages.
-// For testing of import/export only.
-func CleanroomDo(f func()) {
-	saved := pkgMap
-	pkgMap = make(map[string]*Pkg)
-	f()
-	pkgMap = saved
-}