dashboard: remove windows-arm-10 builder

Binaries are failing to run with an 0xc000007b error. The cause is
unknown. See the issue for details.

For golang/go#47019

Change-Id: Ie0145a8cbe97745b632e420466fe13f6ff35fe17
Reviewed-on: https://go-review.googlesource.com/c/build/+/345330
Trust: Alexander Rakoczy <[email protected]>
Run-TryBot: Alexander Rakoczy <[email protected]>
Reviewed-by: Dmitri Shuralyov <[email protected]>
TryBot-Result: Go Bot <[email protected]>

Author: toothrot

dashboard/builders.go

@@ -2269,19 +2269,6 @@ func init() {
 			"GOARCH=arm64",
 		},
 	})
-	addBuilder(BuildConfig{
-		Name:              "windows-arm-10",
-		HostType:          "host-windows-arm64-mini",
-		numTryTestHelpers: 1,
-		buildsRepo: func(repo, branch, goBranch string) bool {
-			return atLeastGo1(goBranch, 17) && buildRepoByDefault(repo)
-		},
-		env: []string{
-			"GOARCH=arm64",
-			"GOARM=7",
-		},
-		KnownIssue: 47019,
-	})
 	addBuilder(BuildConfig{
 		Name:           "darwin-amd64-10_12",
 		HostType:       "host-darwin-10_12",