Revert "Add the streamListen and streamCancel rpcs to the vm service."

runtime/vm/service_event.h

Index: runtime/vm/service_event.h
diff --git a/runtime/vm/service_event.h b/runtime/vm/service_event.h
index aefbc25ab4efa83e9a9fbe3b4166600ffe085423..e74ee66f2929dd039c794600aba734073968312f 100644
--- a/runtime/vm/service_event.h
+++ b/runtime/vm/service_event.h
@@ -24,12 +24,13 @@ class ServiceEvent {
     kPauseInterrupted,
     kPauseException,
     kResume,
+
     kBreakpointAdded,
     kBreakpointResolved,
     kBreakpointRemoved,
-    kInspect,
 
     kGC,
+    kInspect,
 
     kIllegal,
   };
@@ -49,8 +50,6 @@ class ServiceEvent {
 
   EventType type() const { return type_; }
 
-  const char* stream_id() const;
-
   SourceBreakpoint* breakpoint() const {
     return breakpoint_;
   }