#190 Remove urm plugin

twin/etc/twin.urm.puml

@@ -1,27 +0,0 @@
-@startuml
-package com.iluwatar.twin {
-  class App {
-    + App()
-    + main(args : String[]) {static}
-    - waiting() {static}
-  }
-  class BallItem {
-    - LOGGER : Logger {static}
-    - isSuspended : boolean
-    - twin : BallThread
-    + BallItem()
-    + click()
-    + doDraw()
-    + move()
-    + setTwin(twin : BallThread)
-  }
-  abstract class GameItem {
-    - LOGGER : Logger {static}
-    + GameItem()
-    + click() {abstract}
-    + doDraw() {abstract}
-    + draw()
-  }
-}
-BallItem --|> GameItem 
-@enduml