removed duplicated JDialogProVerifGeneration class

src/avatartranslator/toproverif/AVATAR2ProVerif.java

src/ui/ActionPerformer.java

src/ui/GTURTLEModeling.java

src/ui/JToolBarMainTurtle.java

src/ui/MainGUI.java

src/ui/ModeManager.java

src/ui/TGUIAction.java

src/ui/window/JDialogDSE.java

src/ui/window/JDialogProVerifGeneration.java

src/ui/window/JDialogProverifVerification.java