Remove a redudant global variable

main.lua

@@ -59,7 +59,6 @@ function love.load()
     love.resize(love.graphics.getWidth(), love.graphics.getHeight())
 
     -- Now it's real time to load all stuffs!
-    highscores = {}
     require "load"      -- Most game's resources are loaded in here
     require "scene"
     require "game.vctrl"   -- VCTRL
@@ -314,9 +313,7 @@ function love.joystickhat(joystick, hat, direction)
     end
 end
 
-function love.focus(f)
-    return
-end
+function love.focus(f) end
 
 local TARGET_FPS = 60