VM: Re-format to use at most one newline between functions

runtime/vm/os_thread_android.h

Index: runtime/vm/os_thread_android.h
diff --git a/runtime/vm/os_thread_android.h b/runtime/vm/os_thread_android.h
index 095471226d53ab85f567657d4a9a2f92cb0a4065..9e2e0d04a8a46f6dbc76cf28c02d25d53d3b7966 100644
--- a/runtime/vm/os_thread_android.h
+++ b/runtime/vm/os_thread_android.h
@@ -20,11 +20,9 @@ typedef pthread_key_t ThreadLocalKey;
 typedef pid_t ThreadId;
 typedef pthread_t ThreadJoinId;
 
-
 static const ThreadLocalKey kUnsetThreadLocalKey =
     static_cast<pthread_key_t>(-1);
 
-
 class ThreadInlineImpl {
  private:
   ThreadInlineImpl() {}
@@ -41,7 +39,6 @@ class ThreadInlineImpl {
   DISALLOW_COPY_AND_ASSIGN(ThreadInlineImpl);
 };
 
-
 class MutexData {
  private:
   MutexData() {}
@@ -57,7 +54,6 @@ class MutexData {
   DISALLOW_COPY_AND_ASSIGN(MutexData);
 };
 
-
 class MonitorData {
  private:
   MonitorData() {}