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

runtime/vm/os_thread_fuchsia.h

Index: runtime/vm/os_thread_fuchsia.h
diff --git a/runtime/vm/os_thread_fuchsia.h b/runtime/vm/os_thread_fuchsia.h
index 713e08ab00247b52ef70fd8a39a043212d2386b7..5a50bc4160cd04e34e54d90a60869af8c96193b1 100644
--- a/runtime/vm/os_thread_fuchsia.h
+++ b/runtime/vm/os_thread_fuchsia.h
@@ -21,11 +21,9 @@ typedef pthread_key_t ThreadLocalKey;
 typedef mx_koid_t ThreadId;
 typedef pthread_t ThreadJoinId;
 
-
 static const ThreadLocalKey kUnsetThreadLocalKey =
     static_cast<pthread_key_t>(-1);
 
-
 class ThreadInlineImpl {
  private:
   ThreadInlineImpl() {}
@@ -42,7 +40,6 @@ class ThreadInlineImpl {
   DISALLOW_COPY_AND_ASSIGN(ThreadInlineImpl);
 };
 
-
 class MutexData {
  private:
   MutexData() {}
@@ -58,7 +55,6 @@ class MutexData {
   DISALLOW_COPY_AND_ASSIGN(MutexData);
 };
 
-
 class MonitorData {
  private:
   MonitorData() {}