diff --git a/cmd/tailscale/depaware-minlinux.txt b/cmd/tailscale/depaware-minlinux.txt
index bec64be07..5b2268ac0 100644
--- a/cmd/tailscale/depaware-minlinux.txt
+++ b/cmd/tailscale/depaware-minlinux.txt
@@ -107,7 +107,6 @@ tailscale.com/cmd/tailscale dependencies: (generated by github.com/tailscale/dep
         tailscale.com/types/result                                   from tailscale.com/util/lineiter
         tailscale.com/types/structs                                  from tailscale.com/ipn+
         tailscale.com/types/views                                    from tailscale.com/client/web+
-        tailscale.com/util/cibuild                                   from tailscale.com/health
         tailscale.com/util/clientmetric                              from tailscale.com/net/netcheck+
         tailscale.com/util/cloudenv                                  from tailscale.com/hostinfo
         tailscale.com/util/cmpver                                    from tailscale.com/clientupdate
diff --git a/cmd/tailscaled/depaware-minlinux.txt b/cmd/tailscaled/depaware-minlinux.txt
index c30475917..d78185311 100644
--- a/cmd/tailscaled/depaware-minlinux.txt
+++ b/cmd/tailscaled/depaware-minlinux.txt
@@ -111,7 +111,6 @@ tailscale.com/cmd/tailscaled dependencies: (generated by github.com/tailscale/de
         tailscale.com/types/result                                   from tailscale.com/util/lineiter
         tailscale.com/types/structs                                  from tailscale.com/control/controlclient+
         tailscale.com/types/views                                    from tailscale.com/control/controlclient+
-        tailscale.com/util/cibuild                                   from tailscale.com/health
         tailscale.com/util/clientmetric                              from tailscale.com/cmd/tailscaled+
         tailscale.com/util/cloudenv                                  from tailscale.com/hostinfo+
         tailscale.com/util/ctxkey                                    from tailscale.com/derp+
diff --git a/health/health.go b/health/health.go
index 079b3195c..fe7a86433 100644
--- a/health/health.go
+++ b/health/health.go
@@ -12,7 +12,6 @@ import (
 	"fmt"
 	"maps"
 	"net/http"
-	"os"
 	"runtime"
 	"sort"
 	"sync"
@@ -23,7 +22,6 @@ import (
 	"tailscale.com/metrics"
 	"tailscale.com/tailcfg"
 	"tailscale.com/types/opt"
-	"tailscale.com/util/cibuild"
 	"tailscale.com/util/mak"
 	"tailscale.com/util/multierr"
 	"tailscale.com/util/set"
@@ -252,11 +250,6 @@ func (t *Tracker) nil() bool {
 		return false
 	}
 
-	if cibuild.On() {
-		stack := make([]byte, 1<<10)
-		stack = stack[:runtime.Stack(stack, false)]
-		fmt.Fprintf(os.Stderr, "## WARNING: (non-fatal) nil health.Tracker (being strict in CI):\n%s\n", stack)
-	}
 	// TODO(bradfitz): open source our "unexpected" package
 	// and use it here to capture samples of stacks where
 	// t is nil.