Remove unused fields in Pattern class

src/CanvasPattern.cc

@@ -41,8 +41,6 @@ NAN_METHOD(Pattern::New) {
     return Nan::ThrowTypeError("Class constructors cannot be invoked without 'new'");
   }
 
-  int w = 0
-    , h = 0;
   cairo_surface_t *surface;
 
   Local<Object> obj = info[0]->ToObject();
@@ -53,15 +51,11 @@ NAN_METHOD(Pattern::New) {
     if (!img->isComplete()) {
       return Nan::ThrowError("Image given has not completed loading");
     }
-    w = img->width;
-    h = img->height;
     surface = img->surface();
 
   // Canvas
   } else if (Nan::New(Canvas::constructor)->HasInstance(obj)) {
     Canvas *canvas = Nan::ObjectWrap::Unwrap<Canvas>(obj);
-    w = canvas->width;
-    h = canvas->height;
     surface = canvas->surface();
 
   // Invalid
@@ -69,7 +63,7 @@ NAN_METHOD(Pattern::New) {
     return Nan::ThrowTypeError("Image or Canvas expected");
   }
 
-  Pattern *pattern = new Pattern(surface,w,h);
+  Pattern *pattern = new Pattern(surface);
   pattern->Wrap(info.This());
   info.GetReturnValue().Set(info.This());
 }
@@ -79,8 +73,7 @@ NAN_METHOD(Pattern::New) {
  * Initialize linear gradient.
  */
 
-Pattern::Pattern(cairo_surface_t *surface, int w, int h):
-  _width(w), _height(h) {
+Pattern::Pattern(cairo_surface_t *surface) {
   _pattern = cairo_pattern_create_for_surface(surface);
 }
 

src/CanvasPattern.h

@@ -15,12 +15,11 @@ class Pattern: public Nan::ObjectWrap {
     static Nan::Persistent<FunctionTemplate> constructor;
     static void Initialize(Nan::ADDON_REGISTER_FUNCTION_ARGS_TYPE target);
     static NAN_METHOD(New);
-    Pattern(cairo_surface_t *surface, int w, int h);
+    Pattern(cairo_surface_t *surface);
     inline cairo_pattern_t *pattern(){ return _pattern; }
 
   private:
     ~Pattern();
-    int _width, _height;
     // TODO REPEAT/REPEAT_X/REPEAT_Y
     cairo_pattern_t *_pattern;
 };