improvement(examples): remove basic examples

They weren't a good demonstration of actual use of the engine, as they 
were just some quick test created at the beggining. So long, basic 
examples.

CHANGELOG.md

@@ -51,6 +51,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - **actor:** Remove all function related to XGravity
 
+- **examples:** Remove basic examples
+
 ## 0.5.1 - 2019-06-21
 
 ### Fixed

examples/mainmenu/init.lua

@@ -36,10 +36,6 @@ function MainMenu:new()
   self.assets:batchImport("examples.mainmenu.assets")
 
   self:addMenu("main", true)
-  self:addSubMenu("basic", "basic")
-  self:addScene("basic", examples.Test, "test1")
-  self:addScene("basic", examples.Test2, "test2")
-  self:addScene("basic", examples.TestMenu, "testmenu")
   self:addSubMenu("menus", "menu")
   self:addScene("menus", examples.Inventory, "inventory")
   self:addScene("menus", examples.Options, "options")