fix

gui/qt/main_window.py

@@ -1193,8 +1193,6 @@ class ElectrumWindow(QMainWindow):
             self.payment_request = None
             return
 
-        self.payto_help.show()
-        self.payto_help.set_alt(lambda: self.show_pr_details(pr))
         if not pr.has_expired():
             self.payto_e.setGreen()
         else:
@@ -1261,7 +1259,6 @@ class ElectrumWindow(QMainWindow):
             e.setText('')
             e.setFrozen(False)
 
-        self.payto_help.set_alt(None)
         self.set_pay_from([])
         self.update_status()
         run_hook('do_clear')

gui/qt/util.py

@@ -126,17 +126,10 @@ class HelpButton(QPushButton):
         self.help_text = text
         self.setFocusPolicy(Qt.NoFocus)
         self.setFixedWidth(20)
-        self.alt = None
         self.clicked.connect(self.onclick)
 
-    def set_alt(self, func):
-        self.alt = func
-
     def onclick(self):
-        if self.alt:
-            apply(self.alt)
-        else:
-            QMessageBox.information(self, 'Help', self.help_text, 'OK')
+        QMessageBox.information(self, 'Help', self.help_text, 'OK')
 
 class Buttons(QHBoxLayout):
     def __init__(self, *buttons):