Drop useless Main file

compile-common.hxml

@@ -3,5 +3,5 @@
 -lib heaps:git:https://github.com/HeapsIO/heaps.git
 -lib tiledhx
 -lib hxyarn
--main Main
+-main Game
 -lib domkit

src/Game.hx

@@ -196,4 +196,8 @@ class Game extends hxd.App {
 		root.scene = gs;
 		style.addObject(gs.getH2dObject());
 	}
+
+	static function main() {
+		new Game();
+	}
 }

src/Main.hx

@@ -1,5 +0,0 @@
-class Main {
-	static function main() {
-		new Game();
-	}
-}