Remove deprecated setting

Author: Nathan Bolton

js/rpg_core/ShaderTilemap.js

@@ -14,7 +14,6 @@ ShaderTilemap.prototype = Object.create(Tilemap.prototype);
 ShaderTilemap.prototype.constructor = ShaderTilemap;
 
 // we need this constant for some platforms (Samsung S4, S5, Tab4, HTC One H8)
-PIXI.glCore.VertexArrayObject.FORCE_NATIVE = true;
 PIXI.settings.GC_MODE = PIXI.GC_MODES.AUTO;
 PIXI.tilemap.TileRenderer.SCALE_MODE = PIXI.SCALE_MODES.NEAREST;
 PIXI.tilemap.TileRenderer.DO_CLEAR = true;