From df02bb013aec812be0814d5266b856f1448c2904 Mon Sep 17 00:00:00 2001
From: David Anderson <danderson@tailscale.com>
Date: Mon, 20 Mar 2023 13:49:50 -0700
Subject: [PATCH] tool/gocross: fail if the toolchain revision isn't findable

This used to make sense, but after a refactor somewhere along the line
this results in trying to download from a malformed URL and generally
confusing failures.

Signed-off-by: David Anderson <danderson@tailscale.com>
---
 tool/gocross/toolchain.go | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/tool/gocross/toolchain.go b/tool/gocross/toolchain.go
index 38935ebfc..f5f790b43 100644
--- a/tool/gocross/toolchain.go
+++ b/tool/gocross/toolchain.go
@@ -39,9 +39,6 @@ findTopLevel:
 func readRevFile(path string) (string, error) {
 	bs, err := os.ReadFile(path)
 	if err != nil {
-		if os.IsNotExist(err) {
-			return "", nil
-		}
 		return "", err
 	}
 	return string(bytes.TrimSpace(bs)), nil