cleanup

Change-Id: I91a8cdaa606f774a74c4ac2531712801a39ddab0

jami-android/app/src/main/java/cx/ring/services/CameraService.kt

@@ -46,7 +46,6 @@ import io.reactivex.rxjava3.core.Completable
 import io.reactivex.rxjava3.core.Observable
 import io.reactivex.rxjava3.core.Single
 import io.reactivex.rxjava3.disposables.Disposable
-import io.reactivex.rxjava3.schedulers.Schedulers
 import io.reactivex.rxjava3.subjects.BehaviorSubject
 import io.reactivex.rxjava3.subjects.Subject
 import net.jami.daemon.IntVect

jami-android/app/src/main/java/cx/ring/views/SwitchButton.kt

@@ -373,9 +373,7 @@ class SwitchButton(context: Context, attrs: AttributeSet? = null, defStyle: Int
         const val DEFAULT_THUMB_MARGIN_DP = 2
         const val DEFAULT_ANIMATION_DURATION = 250
         const val DEFAULT_SWITCH_WIDTH = 72
-        private fun ceil(dimen: Double): Int {
-            return kotlin.math.ceil(dimen).toInt()
-        }
+        private fun ceil(dimen: Double): Int = kotlin.math.ceil(dimen).toInt()
     }
 
     init {

jami-android/libjamiclient/src/main/kotlin/net/jami/call/CallPresenter.kt

@@ -32,7 +32,6 @@ import net.jami.services.HardwareService.AudioState
 import net.jami.services.HardwareService.VideoEvent
 import net.jami.utils.Log
 import net.jami.utils.StringUtils.toNumber
-import java.util.*
 import java.util.concurrent.TimeUnit
 import javax.inject.Inject
 import javax.inject.Named