Revert "Introduce a Secret/ directory"

client/driver/executor/executor_linux_test.go

@@ -81,24 +81,7 @@ func TestExecutor_IsolationAndConstraints(t *testing.T) {
 		t.Fatalf("file %v hasn't been removed", memLimits)
 	}
 
-	expected := `/:
-alloc/
-bin/
-dev/
-etc/
-lib/
-lib64/
-local/
-proc/
-secrets/
-tmp/
-usr/
-
-/etc/:
-ld.so.cache
-ld.so.conf
-ld.so.conf.d/`
-
+	expected := "/:\nalloc/\nbin/\ndev/\netc/\nlib/\nlib64/\nlocal/\nproc/\ntmp/\nusr/\n\n/etc/:\nld.so.cache\nld.so.conf\nld.so.conf.d/"
 	file := filepath.Join(ctx.AllocDir.LogDir(), "web.stdout.0")
 	output, err := ioutil.ReadFile(file)
 	if err != nil {