Removed call to non-existing function

src/set-session-language

@@ -13,7 +13,6 @@ class App(tk.Frame):
         super().__init__(master)
         self.master.title(_("Cambia la lingua"))
         self.chosen_locale = tk.StringVar(self)
-        self.find_current_locale()
         self.find_locales()
         self.pack()
         self.create_widgets()