i18n template improvements

gui/qt/main_window.py

@@ -1776,7 +1776,7 @@ class ElectrumWindow(QMainWindow, MessageBoxMixin, PrintError):
         return self.create_list_tab(l)
 
     def remove_address(self, addr):
-        if self.question(_("Do you want to remove")+" %s "%addr +_("from your wallet?")):
+        if self.question(_("Do you want to remove {} from your wallet?").format(addr)):
             self.wallet.delete_address(addr)
             self.need_update.set()  # history, addresses, coins
             self.clear_receive_tab()

gui/qt/transaction_dialog.py

@@ -238,7 +238,7 @@ class TxDialog(QDialog, MessageBoxMixin):
             self.date_label.show()
         elif exp_n:
             text = '%.2f MB'%(exp_n/1000000)
-            self.date_label.setText(_('Position in mempool') + ': ' + text + ' ' + _('from tip'))
+            self.date_label.setText(_('Position in mempool: {} from tip').format(text))
             self.date_label.show()
         else:
             self.date_label.hide()