.builds: disable go.local.mod test for gogio

I gave up figuring out how to run it under Go 1.17.

Signed-off-by: Elias Naur <mail@eliasnaur.com>

cmd/go.local.mod

@@ -1,20 +0,0 @@
-// Keep in sync with go.mod; the only difference should be the gioui.org
-// replace. To use it:
-//
-//     cd gogio
-//     GOFLAGS=-modfile=../go.local.mod go test
-
-module gioui.org/cmd
-
-go 1.13
-
-require (
-	gioui.org v0.0.0-00010101000000-000000000000
-	github.com/chromedp/cdproto v0.0.0-20191114225735-6626966fbae4
-	github.com/chromedp/chromedp v0.5.2
-	golang.org/x/image v0.0.0-20200618115811-c13761719519
-	golang.org/x/sync v0.0.0-20190423024810-112230192c58
-	golang.org/x/tools v0.0.0-20190927191325-030b2cf1153e
-)
-
-replace gioui.org => ../

cmd/go.local.sum

@@ -1 +0,0 @@
-go.sum