DnsConfig: get rid of unnecessary isEmpty check (#149)

* DnsConfig: remove unnecessary isEmpty check

Updates #cleanup

* DnsConfig: remove unnecessary isEmpty check

Updates #cleanup

* k

android/src/main/java/com/tailscale/ipn/DnsConfig.java

@@ -42,11 +42,7 @@ public class DnsConfig {
 	//
 	// an empty string means the current DNS configuration could not be retrieved.
 	String getDnsConfigAsString() {
-		String s = getDnsConfigs();
+		return getDnsConfigs().trim();
-		if (!s.trim().isEmpty()) {
-			return s;
-		}
-		return "";
 	}
 
 	private String getDnsConfigs(){