delete additional functions

app/src/main/java/com/example/stayfitapplication/model/Sensors.kt

@@ -6,38 +6,5 @@ import android.hardware.SensorEvent
 import android.hardware.SensorEventListener
 import android.hardware.SensorManager
 
-class Sensors : SensorEventListener {
-    private lateinit var mSensorManager: SensorManager
-    private var mHeartRateSensor: Sensor? = null
-    private var mStepCounterSensor: Sensor? = null
-    private var mStepDetectorSensor: Sensor? = null
-    private lateinit var mSensorDataListener: SensorDataListener
-
-    override fun onAccuracyChanged(sensor: Sensor?, accuracy: Int) {
-        // do nothing
-    }
-
-    override fun onSensorChanged(event: SensorEvent?) {
-        if (event == null) {
-            return
-        }
-
-        // TODO
-    }
-
-    fun createSensor(context: Context, sensorDataListener: SensorDataListener) {
-        // TODO
-    }
-
-    fun start() {
-        // TODO
-    }
-
-    fun stop() {
-        // TODO
-    }
-
-    interface SensorDataListener {
-        // TODO
-    }
+class Sensors {
 }
\ No newline at end of file

app/src/main/java/com/example/stayfitapplication/viewmodel/SessionViewModel.kt

@@ -12,7 +12,7 @@ import com.example.stayfitapplication.model.repository.SessionRepository
 import java.util.*
 import kotlin.collections.ArrayList
 
-class SessionViewModel(context: Context) : ViewModel(), Sensors.SensorDataListener {
+class SessionViewModel(context: Context) : ViewModel() {
     private val mRepository: SessionRepository by lazy { StayFitApplication.repository }
 
     init {