kivy: rm dead code

gui/kivy/uix/dialogs/new_contact.py

@@ -1,20 +0,0 @@
-from kivy.app import App
-from kivy.factory import Factory
-from kivy.properties import ObjectProperty
-
-Factory.register('QrScannerDialog', module='electrum_gui.kivy.uix.dialogs.qr_scanner')
-
-class NewContactDialog(Factory.AnimatedPopup):
-
-    def load_qr_scanner(self):
-        self.dismiss()
-        App.get_running_app().scan_qr(on_complete=self.on_complete)
-
-    def on_complete(self, instance, uri):
-        self.new_contact(uri=uri)
-
-    def new_contact(self, uri={}):
-        # load NewContactScreen
-        app = App.get_running_app()
-        #app.root.
-        # set contents of uri in the new contact screen