From 04e0a5e5af480bedd63b158846191130173c31fe Mon Sep 17 00:00:00 2001
From: KIU Shueng Chuan <nixchuan@gmail.com>
Date: Sun, 17 Jan 2021 12:59:02 +0800
Subject: [PATCH] WidgetGroup.py : PyQt6 was taking PyQt4 codepath

we drop PyQt4 codepath
---
 pyqtgraph/WidgetGroup.py | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/pyqtgraph/WidgetGroup.py b/pyqtgraph/WidgetGroup.py
index 4656cc62..6b99f86c 100644
--- a/pyqtgraph/WidgetGroup.py
+++ b/pyqtgraph/WidgetGroup.py
@@ -218,9 +218,6 @@ class WidgetGroup(QtCore.QObject):
         v1 = self.cache[n]
         v2 = self.readWidget(w)
         if v1 != v2:
-            if QT_LIB != 'PyQt5':
-                # Old signal kept for backward compatibility.
-                self.emit(QtCore.SIGNAL('changed'), self.widgetList[w], v2)
             self.sigChanged.emit(self.widgetList[w], v2)
         
     def state(self):