Removed unrequired code

app/src/main/kotlin/com/simplemobiletools/clock/activities/MainActivity.kt

@@ -10,7 +10,6 @@ import android.os.Bundle
 import android.view.WindowManager
 import android.widget.ImageView
 import android.widget.TextView
-import androidx.lifecycle.lifecycleScope
 import com.simplemobiletools.clock.BuildConfig
 import com.simplemobiletools.clock.R
 import com.simplemobiletools.clock.adapters.ViewPagerAdapter
@@ -20,8 +19,6 @@ import com.simplemobiletools.commons.extensions.*
 import com.simplemobiletools.commons.helpers.*
 import com.simplemobiletools.commons.models.FAQItem
 import kotlinx.android.synthetic.main.activity_main.*
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.launch
 import me.grantland.widget.AutofitHelper
 
 class MainActivity : SimpleActivity() {

app/src/main/kotlin/com/simplemobiletools/clock/extensions/Context.kt

@@ -9,6 +9,8 @@ import android.media.AudioAttributes
 import android.media.AudioManager.STREAM_ALARM
 import android.media.RingtoneManager
 import android.net.Uri
+import android.os.Handler
+import android.os.Looper
 import android.os.PowerManager
 import android.text.SpannableString
 import android.text.format.DateFormat
@@ -311,17 +313,12 @@ fun Context.getClosestEnabledAlarmString(result: (String) -> Unit) {
 }
 
 fun Context.getEnabledAlarms(enabledAlarms: (List<Alarm>?) -> Unit) {
-    ensureBackgroundThreadWithResult(
-        task = {
-            dbHelper.getEnabledAlarms()
-        },
-        callback = { alarms ->
+    ensureBackgroundThread {
+        val alarms = dbHelper.getEnabledAlarms()
+        Handler(Looper.getMainLooper()).post {
             enabledAlarms.invoke(alarms)
-        },
-        onError = {
-            enabledAlarms.invoke(null)
         }
-    )
+    }
 }
 
 fun Context.rescheduleEnabledAlarms() {

app/src/main/kotlin/com/simplemobiletools/clock/fragments/AlarmFragment.kt

@@ -5,7 +5,6 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import androidx.fragment.app.Fragment
-import androidx.lifecycle.lifecycleScope
 import com.simplemobiletools.clock.R
 import com.simplemobiletools.clock.activities.MainActivity
 import com.simplemobiletools.clock.activities.SimpleActivity
@@ -24,8 +23,6 @@ import com.simplemobiletools.commons.helpers.SORT_BY_DATE_CREATED
 import com.simplemobiletools.commons.helpers.ensureBackgroundThread
 import com.simplemobiletools.commons.models.AlarmSound
 import kotlinx.android.synthetic.main.fragment_alarm.view.*
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.launch
 
 class AlarmFragment : Fragment(), ToggleAlarmInterface {
     private var alarms = ArrayList<Alarm>()

app/src/main/kotlin/com/simplemobiletools/clock/helpers/Constants.kt

@@ -241,40 +241,3 @@ fun getTimeDifferenceInMinutes(currentTimeInMinutes: Int, alarmTimeInMinutes: In
         minutesInADay - (currentTimeInMinutes - minutesUntilAlarm)
     }
 }
-
-/**
- * Runs tasks that you want on a background thread and returns the result or error
- * @param task: Callable to add code that should execute on a background thread
- * @param callback: Gives back the result from the task after it has completed executing on the Main thread
- * @param onError: Gives the error thrown if any by the Callable on the Main thread
- */
-fun <T> ensureBackgroundThreadWithResult(
-    task: Callable<T>,
-    callback: (T) -> Unit,
-    onError: ((Throwable) -> Unit)? = null
-) {
-    val executor = if (isOnMainThread()) {
-        Executors.newSingleThreadExecutor()
-    } else {
-        Executors.newFixedThreadPool(1)
-    }
-
-    val handler = Handler(Looper.getMainLooper())
-
-    val future = executor.submit(task)
-
-    executor.submit {
-        try {
-            val result = future.get()
-            handler.post {
-                callback(result)
-            }
-        } catch (t: Throwable) {
-            handler.post {
-                onError?.invoke(t)
-            }
-        } finally {
-            executor.shutdown()
-        }
-    }
-}