Quitados tres warnings

source/ltexture.cpp

@@ -103,8 +103,8 @@ bool LTexture::createBlank(SDL_Renderer *renderer, int width, int height, SDL_Te
 	}
 	else
 	{
-		width = width;
-		height = height;
+		this->width = width;
+		this->height = height;
 	}
 
 	return texture != NULL;

source/scoreboard.cpp

@@ -77,9 +77,6 @@ ScoreBoard::~ScoreBoard()
 // Pinta el objeto en pantalla
 void ScoreBoard::render()
 {
-
-    const int num_lives = 9;
-
     // Dibuja el fondo del marcador
     const SDL_Rect rect = {0, 17 * BLOCK, PLAY_AREA_WIDTH, GAMECANVAS_HEIGHT - PLAY_AREA_HEIGHT};
     SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);