Simplify regex

src/notifications/ManagerLinux.cpp

@@ -234,7 +234,7 @@ NotificationsManager::formatNotification(const mtx::responses::Notification &not
 
         return QTextDocumentFragment::fromHtml(
                  mtx::accessors::formattedBodyWithFallback(notification.event)
-                   .replace(QRegularExpression("(<mx-reply>.+\\<\\/mx-reply\\>)"), ""))
+                   .replace(QRegularExpression("<mx-reply>.+</mx-reply>"), ""))
           .toPlainText()
           .prepend(messageLeadIn);
 }

src/notifications/ManagerMac.cpp

@@ -20,7 +20,7 @@ NotificationsManager::formatNotification(const mtx::responses::Notification &not
 
         return QTextDocumentFragment::fromHtml(
                  mtx::accessors::formattedBodyWithFallback(notification.event)
-                   .replace(QRegularExpression("(<mx-reply>.+\\<\\/mx-reply\\>)"), ""))
+                   .replace(QRegularExpression("<mx-reply>.+</mx-reply>"), ""))
           .toPlainText()
           .prepend((mtx::accessors::msg_type(notification.event) == mtx::events::MessageType::Emote)
                      ? "* " + sender + " "

src/notifications/ManagerWin.cpp

@@ -121,7 +121,7 @@ NotificationsManager::formatNotification(const mtx::responses::Notification &not
 
         return QTextDocumentFragment::fromHtml(
                  mtx::accessors::formattedBodyWithFallback(notification.event)
-                   .replace(QRegularExpression("(<mx-reply>.+\\<\\/mx-reply\\>)"), ""))
+                   .replace(QRegularExpression("<mx-reply>.+</mx-reply>"), ""))
           .toPlainText()
           .prepend(messageLeadIn);
 }