IDevice: Provide default implementation for signalOperation()

Don't repeat implementation returning nullptr in derived classes.

Change-Id: I437f5d206464bf92706cd135d793438f46455ad6
Reviewed-by: hjk <hjk@qt.io>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>

src/plugins/ios/iosdevice.cpp

@@ -123,11 +123,6 @@ IDeviceWidget *IosDevice::createWidget()
     return new IosDeviceInfoWidget(sharedFromThis());
 }
 
-DeviceProcessSignalOperation::Ptr IosDevice::signalOperation() const
-{
-    return DeviceProcessSignalOperation::Ptr();
-}
-
 void IosDevice::fromMap(const QVariantMap &map)
 {
     IDevice::fromMap(map);

src/plugins/ios/iosdevice.h

@@ -31,7 +31,6 @@ public:
 
     ProjectExplorer::IDevice::DeviceInfo deviceInformation() const override;
     ProjectExplorer::IDeviceWidget *createWidget() override;
-    ProjectExplorer::DeviceProcessSignalOperation::Ptr signalOperation() const override;
 
     QString deviceName() const;
     QString uniqueDeviceID() const;

src/plugins/ios/iossimulator.cpp

@@ -47,11 +47,6 @@ IDeviceWidget *IosSimulator::createWidget()
     return nullptr;
 }
 
-DeviceProcessSignalOperation::Ptr IosSimulator::signalOperation() const
-{
-    return DeviceProcessSignalOperation::Ptr();
-}
-
 Utils::Port IosSimulator::nextPort() const
 {
     for (int i = 0; i < 100; ++i) {

src/plugins/ios/iossimulator.h

@@ -50,7 +50,6 @@ public:
     ProjectExplorer::IDevice::DeviceInfo deviceInformation() const override;
 
     ProjectExplorer::IDeviceWidget *createWidget() override;
-    ProjectExplorer::DeviceProcessSignalOperation::Ptr signalOperation() const override;
     Utils::Port nextPort() const;
     bool canAutoDetectPorts() const override;