test: remove nacl checking condition

go1.14 drop nacl support, as go1.15 was released, go1.13 is not
supported anymore, nacl is absolutely gone.

Change-Id: I05efb46891ec875b08da8f2996751a8e9cb57d0c
Reviewed-on: https://go-review.googlesource.com/c/go/+/249977
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

test/fixedbugs/issue13268.go

@@ -17,16 +17,10 @@ import (
 	"log"
 	"os"
 	"os/exec"
-	"runtime"
 	"strings"
 )
 
 func main() {
-	// cannot use temp file on nacl via child process
-	if runtime.GOOS == "nacl" {
-		return
-	}
-
 	// create source
 	f, err := ioutil.TempFile("", "issue13268-")
 	if err != nil {

test/fixedbugs/issue21317.go

@@ -21,7 +21,7 @@ import (
 )
 
 func main() {
-	if runtime.Compiler != "gc" || runtime.GOOS == "nacl" || runtime.GOOS == "js" {
+	if runtime.Compiler != "gc" || runtime.GOOS == "js" {
 		return
 	}
 

test/fixedbugs/issue22660.go

@@ -19,7 +19,7 @@ import (
 )
 
 func main() {
-	if runtime.GOOS == "nacl" || runtime.GOOS == "js" {
+	if runtime.GOOS == "js" {
 		return // no file system available on builders
 	}
 

test/fixedbugs/issue22662b.go

@@ -36,7 +36,7 @@ var tests = []struct {
 }
 
 func main() {
-	if runtime.GOOS == "nacl" || runtime.GOOS == "js" {
+	if runtime.GOOS == "js" {
 		return // can not exec go tool
 	}
 

test/fixedbugs/issue9355.go

@@ -17,7 +17,7 @@ import (
 )
 
 func main() {
-	if runtime.Compiler != "gc" || runtime.GOOS == "nacl" || runtime.GOOS == "js" {
+	if runtime.Compiler != "gc" || runtime.GOOS == "js" {
 		return
 	}