dashboard: remove openbsd-{386,amd64}-71

OpenBSD 7.1 has a kqueue bug[1] that prevents these builders from working properly.

Fixes golang/go#57585

[1] https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/kern/kern_event.c.diff?r1=1.188&r2=1.189

Change-Id: I2b6f332ea3adde1d33a5e07939eee37fbd771bd0
GitHub-Last-Rev: 6071bf9f5859d27104e2586de04dcd8df27c9a95
GitHub-Pull-Request: golang/build#53
Reviewed-on: https://go-review.googlesource.com/c/build/+/462290
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
diff --git a/dashboard/builders.go b/dashboard/builders.go
index 8de40a2..8707bd2 100644
--- a/dashboard/builders.go
+++ b/dashboard/builders.go
@@ -451,13 +451,6 @@
 		Owners:      []*gophers.Person{gh("bsiegert")},
 		GoBootstrap: "go1.19.2", // Go 1.17 is too old; see go.dev/issue/42422
 	},
-	"host-openbsd-386-71": {
-		VMImage:     "openbsd-386-71",
-		machineType: "n2", // force Intel; see go.dev/issue/49209
-		Notes:       "OpenBSD 7.1; GCE VM, built from build/env/openbsd-386",
-		SSHUsername: "gopher",
-		GoBootstrap: "go1.19.2", // Go 1.17 is too old; see go.dev/issue/42422
-	},
 	"host-openbsd-386-72": {
 		VMImage:     "openbsd-386-72",
 		machineType: "n2", // force Intel; see go.dev/issue/49209
@@ -465,13 +458,6 @@
 		SSHUsername: "gopher",
 		GoBootstrap: "go1.19.2", // Go 1.17 is too old; see go.dev/issue/42422
 	},
-	"host-openbsd-amd64-71": {
-		VMImage:     "openbsd-amd64-71",
-		machineType: "n2", // force Intel; see go.dev/issue/49209
-		Notes:       "OpenBSD 7.1; GCE VM, built from build/env/openbsd-amd64",
-		SSHUsername: "gopher",
-		GoBootstrap: "go1.19.2", // Go 1.17 is too old; see go.dev/issue/42422
-	},
 	"host-openbsd-amd64-72": {
 		VMImage:     "openbsd-amd64-72",
 		machineType: "n2", // force Intel; see go.dev/issue/49209
@@ -1966,12 +1952,6 @@
 		},
 	})
 	addBuilder(BuildConfig{
-		Name:              "openbsd-amd64-71",
-		HostType:          "host-openbsd-amd64-71",
-		distTestAdjust:    noTestDirAndNoReboot,
-		numTryTestHelpers: 4,
-	})
-	addBuilder(BuildConfig{
 		Name:              "openbsd-amd64-72",
 		HostType:          "host-openbsd-amd64-72",
 		tryBot:            defaultTrySet(),
@@ -1979,17 +1959,6 @@
 		numTryTestHelpers: 4,
 	})
 	addBuilder(BuildConfig{
-		Name:     "openbsd-386-71",
-		HostType: "host-openbsd-386-71",
-		buildsRepo: func(repo, branch, goBranch string) bool {
-			// https://go.dev/issue/49529: git seems to be too slow on this
-			// platform.
-			return repo != "review" && buildRepoByDefault(repo)
-		},
-		distTestAdjust:    noTestDirAndNoReboot,
-		numTryTestHelpers: 4,
-	})
-	addBuilder(BuildConfig{
 		Name:     "openbsd-386-72",
 		HostType: "host-openbsd-386-72",
 		tryBot:   explicitTrySet("sys"),