Revert "Fix observatory tests broken by running dartfmt."

runtime/observatory/tests/service/get_ports_rpc_test.dart

Index: runtime/observatory/tests/service/get_ports_rpc_test.dart
diff --git a/runtime/observatory/tests/service/get_ports_rpc_test.dart b/runtime/observatory/tests/service/get_ports_rpc_test.dart
index 0feac563d8fc7a44852f1f1ee21f9a9a083fbd85..44a04d215ef2dfd12ffd176a7a9d2f0255787ac0 100644
--- a/runtime/observatory/tests/service/get_ports_rpc_test.dart
+++ b/runtime/observatory/tests/service/get_ports_rpc_test.dart
@@ -16,7 +16,8 @@ var port2;
 
 void warmup() {
   port1 = new RawReceivePort(null);
-  port2 = new RawReceivePort((_) {});
+  port2 = new RawReceivePort((_) {
+  });
 }
 
 int countHandlerMatches(ports, matcher) {
@@ -51,4 +52,4 @@ var tests = [
   },
 ];
 
-main(args) async => runIsolateTests(args, tests, testeeBefore: warmup);
+main(args) async => runIsolateTests(args, tests, testeeBefore:warmup);