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

runtime/vm/thread_interrupter_linux.cc

Index: runtime/vm/thread_interrupter_linux.cc
diff --git a/runtime/vm/thread_interrupter_linux.cc b/runtime/vm/thread_interrupter_linux.cc
index 8fe7265c54b7cc76e34eb3910c57b1e31de04a92..21945a8cccd46ba3a48ec7b94e1e3ba6ad4a8747 100644
--- a/runtime/vm/thread_interrupter_linux.cc
+++ b/runtime/vm/thread_interrupter_linux.cc
@@ -45,12 +45,10 @@ class ThreadInterrupterLinux : public AllStatic {
   }
 };
 
-
 bool ThreadInterrupter::IsDebuggerAttached() {
   return false;
 }
 
-
 void ThreadInterrupter::InterruptThread(OSThread* thread) {
   if (FLAG_trace_thread_interrupter) {
     OS::PrintErr("ThreadInterrupter interrupting %p\n",
@@ -60,13 +58,11 @@ void ThreadInterrupter::InterruptThread(OSThread* thread) {
   ASSERT((result == 0) || (result == ESRCH));
 }
 
-
 void ThreadInterrupter::InstallSignalHandler() {
   SignalHandler::Install<
       ThreadInterrupterLinux::ThreadInterruptSignalHandler>();
 }
 
-
 void ThreadInterrupter::RemoveSignalHandler() {
   SignalHandler::Remove();
 }