Always include debugger support.

src/api.cc

Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index 705cae55b00b4afb3bec52ed087f8b2f493f9e32..ec6fab439903b8144378ba4e265c4238a79908e5 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -6809,8 +6809,6 @@ Local<Value> Exception::Error(v8::Handle<v8::String> raw_message) {
 
 // --- D e b u g   S u p p o r t ---
 
-#ifdef ENABLE_DEBUGGER_SUPPORT
-
 bool Debug::SetDebugEventListener2(EventCallback2 that, Handle<Value> data) {
   i::Isolate* isolate = i::Isolate::Current();
   EnsureInitializedForIsolate(isolate, "v8::Debug::SetDebugEventListener2()");
@@ -6975,9 +6973,6 @@ void Debug::SetLiveEditEnabled(Isolate* isolate, bool enable) {
 }
 
 
-#endif  // ENABLE_DEBUGGER_SUPPORT
-
-
 Handle<String> CpuProfileNode::GetFunctionName() const {
   i::Isolate* isolate = i::Isolate::Current();
   const i::ProfileNode* node = reinterpret_cast<const i::ProfileNode*>(this);