qt: fix: ToU 'I Accept' button not getting enabled

The 'I Accept' button might not get enabled for some users where startup
is very slow.
The first check if the 'I Agree' button should be enabled gets fired
100ms after constructing the Dialog, which might not be enough.
So we can either remove the logic completely (done here) to prevent these
issues, or alternatively increase the initial timer to some large timout
after which the window should be assembled fully (e.g. 2 seconds). As
the user is not able to read the whole terms in few seconds this would
be a viable option too.

Author: f321x

electrum/gui/qt/wizard/terms_of_use.py

@@ -52,32 +52,7 @@ def __init__(self, parent, wizard):
         self.tos_label = WWLabel()
         self.tos_label.setText(messages.MSG_TERMS_OF_USE)
         self.layout().addWidget(self.tos_label)
-        self._valid = False
-
-        # Find the scroll area and connect to its scrollbar
-        QTimer.singleShot(100, self.check_scroll_position)
-        self.window().installEventFilter(self)
-
-    def eventFilter(self, obj, event):
-        if obj == self.window() and event.type() == QEvent.Type.Resize:
-            # catch window resize events to check if the scrollbar is visible
-            QTimer.singleShot(100, self.check_scroll_position)
-        return super().eventFilter(obj, event)
-
-    def check_scroll_position(self):
-        scroll_area = self.window().findChild(QScrollArea)
-        if scroll_area and scroll_area.verticalScrollBar() \
-                and scroll_area.verticalScrollBar().isVisible():
-            scrollbar = scroll_area.verticalScrollBar()
-            def on_scroll_change(value):
-                if value >= scrollbar.maximum() - 5:  # Allow 5 pixel margin
-                    self._valid = True
-                    self.on_updated()
-            scrollbar.valueChanged.connect(on_scroll_change)
-        else:
-            # scrollbar is not visible or not found
-            self._valid = True
-            self.on_updated()
+        self._valid = True
 
     def apply(self):
         pass