net/dnscache: remove unnecessary lint warning.

net/dnscache/dnscache.go

@@ -22,8 +22,6 @@ var single = &Resolver{
 }
 
 func preferGoResolver() bool {
-	//lint:ignore S1008 disagree; prefer comments
-
 	// There does not appear to be a local resolver running
 	// on iOS, and NetworkExtension is good at isolating DNS.
 	// So do not use the Go resolver on macOS/iOS.