Don't run android in a bg thread since no issue have been reported

Author: veloce

android/src/main/kotlin/org/lichess/sound_effect/SoundEffectPlugin.kt

@@ -8,7 +8,6 @@ import io.flutter.plugin.common.MethodCall
 import io.flutter.plugin.common.MethodChannel
 import io.flutter.plugin.common.MethodChannel.MethodCallHandler
 import io.flutter.plugin.common.MethodChannel.Result
-import io.flutter.plugin.common.StandardMethodCodec
 
 class SoundEffectPlugin: FlutterPlugin, MethodCallHandler, SoundPool.OnLoadCompleteListener {
   companion object {
@@ -22,9 +21,7 @@ class SoundEffectPlugin: FlutterPlugin, MethodCallHandler, SoundPool.OnLoadCompl
   private val audioMap = HashMap<String, Int>()
 
   override fun onAttachedToEngine(flutterPluginBinding: FlutterPlugin.FlutterPluginBinding) {
-    val taskQueue =
-      flutterPluginBinding.binaryMessenger.makeBackgroundTaskQueue()
-    channel = MethodChannel(flutterPluginBinding.binaryMessenger, CHANNEL_NAME, StandardMethodCodec.INSTANCE, taskQueue)
+    channel = MethodChannel(flutterPluginBinding.binaryMessenger, CHANNEL_NAME)
     binding = flutterPluginBinding
     channel.setMethodCallHandler(this)
   }