diff --git a/app/build.gradle b/app/build.gradle
index cc4e80c49..a4981fa29 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,15 +1,10 @@
 apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
-//apply plugin: 'kotlin-android-extensions'
 apply plugin: 'kotlin-parcelize'
 apply plugin: 'kotlin-kapt'
 apply plugin: 'de.timfreiheit.resourceplaceholders'
 apply plugin: 'com.google.firebase.crashlytics'
 
-//androidExtensions {
-//    experimental = true
-//}
-
 static def releaseTime() {
     return new Date().format("yy.MMddHH", TimeZone.getTimeZone("GMT+8"))
 }