#190 Remove urm plugin

private-class-data/etc/private-class-data.urm.puml

@@ -1,36 +0,0 @@
-@startuml
-package com.iluwatar.privateclassdata {
-  class App {
-    + App()
-    + main(args : String[]) {static}
-  }
-  class ImmutableStew {
-    - LOGGER : Logger {static}
-    - data : StewData
-    + ImmutableStew(numPotatoes : int, numCarrots : int, numMeat : int, numPeppers : int)
-    + mix()
-  }
-  class Stew {
-    - LOGGER : Logger {static}
-    - numCarrots : int
-    - numMeat : int
-    - numPeppers : int
-    - numPotatoes : int
-    + Stew(numPotatoes : int, numCarrots : int, numMeat : int, numPeppers : int)
-    + mix()
-    + taste()
-  }
-  class StewData {
-    - numCarrots : int
-    - numMeat : int
-    - numPeppers : int
-    - numPotatoes : int
-    + StewData(numPotatoes : int, numCarrots : int, numMeat : int, numPeppers : int)
-    + getNumCarrots() : int
-    + getNumMeat() : int
-    + getNumPeppers() : int
-    + getNumPotatoes() : int
-  }
-}
-ImmutableStew -->  "-data" StewData
-@enduml