diff --git a/examples/contact-sensor-app/nxp/common/AppTask.cpp b/examples/contact-sensor-app/nxp/common/AppTask.cpp
index 7539bc61e09a1f..2b102adc1b4924 100644
--- a/examples/contact-sensor-app/nxp/common/AppTask.cpp
+++ b/examples/contact-sensor-app/nxp/common/AppTask.cpp
@@ -18,10 +18,6 @@
 
 #include "AppTask.h"
 
-#if CONFIG_LOW_POWER
-#include "PWR_Interface.h"
-#endif
-
 #include <app-common/zap-generated/attributes/Accessors.h>
 #include <platform/CHIPDeviceLayer.h>
 
@@ -36,18 +32,6 @@ void ContactSensorApp::AppTask::PreInitMatterStack()
     ChipLogProgress(DeviceLayer, "Welcome to NXP Contact Sensor Demo App");
 }
 
-#if CONFIG_LOW_POWER
-void ContactSensorApp::AppTask::AppMatter_DisallowDeviceToSleep()
-{
-    PWR_DisallowDeviceToSleep();
-}
-
-void ContactSensorApp::AppTask::AppMatter_AllowDeviceToSleep()
-{
-    PWR_AllowDeviceToSleep();
-}
-#endif
-
 ContactSensorApp::AppTask & ContactSensorApp::AppTask::GetDefaultInstance()
 {
     static ContactSensorApp::AppTask sAppTask;
diff --git a/examples/contact-sensor-app/nxp/common/include/AppTask.h b/examples/contact-sensor-app/nxp/common/include/AppTask.h
index 407572aad254e6..7a4a9a61617970 100644
--- a/examples/contact-sensor-app/nxp/common/include/AppTask.h
+++ b/examples/contact-sensor-app/nxp/common/include/AppTask.h
@@ -34,10 +34,6 @@ class AppTask : public chip::NXP::App::AppTaskFreeRTOS
 
     // AppTaskFreeRTOS virtual methods
     void PreInitMatterStack() override;
-#if CONFIG_LOW_POWER
-    void AppMatter_DisallowDeviceToSleep() override;
-    void AppMatter_AllowDeviceToSleep() override;
-#endif
 
     // This returns an instance of this class.
     static AppTask & GetDefaultInstance();