crash reporter: remove "Never" btn and config.SHOW_CRASH_REPORTER opt

- always hook into sys.excepthook and show the crash reporter
- if we don't hook into sys.excepthook and an exception propagates out on a Qt thread,
  that kills the Qt GUI
  - ref https://github.com/spesmilo/electrum/pull/10049#issuecomment-3089278083

electrum/gui/qml/components/ExceptionDialog.qml

@@ -89,15 +89,6 @@ ElDialog
                     dialog.open()
                 }
             }
-            Button {
-                Layout.fillWidth: true
-                Layout.preferredWidth: 2
-                text: qsTr('Never')
-                onClicked: {
-                    AppController.showNever()
-                    close()
-                }
-            }
             Button {
                 Layout.fillWidth: true
                 Layout.preferredWidth: 2

electrum/gui/qml/qeapp.py

@@ -379,10 +379,6 @@ class QEAppController(BaseCrashReporter, QObject):
         self.sendingBugreport.emit()
         threading.Thread(target=report_task, daemon=True).start()
 
-    @pyqtSlot()
-    def showNever(self):
-        self.config.SHOW_CRASH_REPORTER = False
-
     def _get_traceback_str_to_display(self) -> str:
         # The msg_box that shows the report uses rich_text=True, so
         # if traceback contains special HTML characters, e.g. '<',
@@ -551,9 +547,6 @@ class Exception_Hook(QObject, Logger):
 
     @classmethod
     def maybe_setup(cls, *, wallet: 'Abstract_Wallet' = None, slot=None) -> None:
-        if not QEConfig.instance.config.SHOW_CRASH_REPORTER:
-            EarlyExceptionsQueue.set_hook_as_ready()  # flush already queued exceptions
-            return
         if not cls._INSTANCE:
             cls._INSTANCE = Exception_Hook(slot=slot)
         if wallet:

electrum/gui/qt/exception_window.py

@@ -87,10 +87,6 @@ class Exception_Window(BaseCrashReporter, QWidget, MessageBoxMixin, Logger):
         report_button.setIcon(read_QIcon("tab_send.png"))
         buttons.addWidget(report_button)
 
-        never_button = QPushButton(_('Never'))
-        never_button.clicked.connect(lambda _checked: self.show_never())
-        buttons.addWidget(never_button)
-
         close_button = QPushButton(_('Not Now'))
         close_button.clicked.connect(lambda _checked: self.close())
         buttons.addWidget(close_button)
@@ -137,10 +133,6 @@ class Exception_Window(BaseCrashReporter, QWidget, MessageBoxMixin, Logger):
         Exception_Window._active_window = None
         self.close()
 
-    def show_never(self):
-        self.config.SHOW_CRASH_REPORTER = False
-        self.close()
-
     def closeEvent(self, event):
         self.on_close()
         event.accept()
@@ -192,9 +184,6 @@ class Exception_Hook(QObject, Logger):
 
     @classmethod
     def maybe_setup(cls, *, config: 'SimpleConfig', wallet: 'Abstract_Wallet' = None) -> None:
-        if not config.SHOW_CRASH_REPORTER:
-            EarlyExceptionsQueue.set_hook_as_ready()  # flush already queued exceptions
-            return
         if not cls._INSTANCE:
             cls._INSTANCE = Exception_Hook(config=config)
         if wallet:

electrum/simple_config.py

@@ -886,7 +886,6 @@ Warning: setting this to too low will result in lots of payment failures."""),
         long_desc=lambda: _("Select which language is used in the GUI (after restart)."),
     )
     BLOCKCHAIN_PREFERRED_BLOCK = ConfigVar('blockchain_preferred_block', default=None)
-    SHOW_CRASH_REPORTER = ConfigVar('show_crash_reporter', default=True, type_=bool)
     DONT_SHOW_TESTNET_WARNING = ConfigVar('dont_show_testnet_warning', default=False, type_=bool)
     RECENTLY_OPEN_WALLET_FILES = ConfigVar('recently_open', default=None)
     IO_DIRECTORY = ConfigVar('io_dir', default=os.path.expanduser('~'), type_=str)