Remove unused variables.

src/node_buffer.cc

@@ -171,11 +171,10 @@ Handle<Value> Buffer::New(const Arguments &args) {
 
   HandleScope scope;
 
-  Buffer *buffer;
   if (args[0]->IsInt32()) {
     // var buffer = new Buffer(1024);
     size_t length = args[0]->Uint32Value();
-    buffer = new Buffer(args.This(), length);
+    new Buffer(args.This(), length);
   } else {
     return ThrowException(Exception::TypeError(String::New("Bad argument")));
   }

src/node_script.cc

@@ -357,7 +357,6 @@ Handle<Value> WrappedScript::EvalMachine(const Arguments& args) {
 
   } else if (context_flag == userContext) {
     // Use the passed in context
-    Local<Object> contextArg = args[sandbox_index]->ToObject();
     WrappedContext *nContext = ObjectWrap::Unwrap<WrappedContext>(sandbox);
     context = nContext->GetV8Context();
   }

src/v8_typed_array.cc

@@ -345,11 +345,6 @@ class TypedArray {
       v8::Handle<v8::Object> obj = v8::Handle<v8::Object>::Cast(args[0]);
 
       if (TypedArray<TBytes, TEAType>::HasInstance(obj)) {  // ArrayBufferView.
-        v8::Handle<v8::Object> src_buffer = v8::Handle<v8::Object>::Cast(
-            obj->Get(v8::String::New("buffer")));
-        v8::Handle<v8::Object> dst_buffer = v8::Handle<v8::Object>::Cast(
-            args.This()->Get(v8::String::New("buffer")));
-
         if (args[1]->Int32Value() < 0)
           return ThrowRangeError("Offset may not be negative.");