Snap for 5590969 from 6e094a8640f34b8452a9d96036f89f06304a8e75 to sdk-release

Change-Id: Ic611296697c6599bc932fd3f93348b308894b2b9
diff --git a/build.gradle b/build.gradle
index 77a92cd..b9666b2 100644
--- a/build.gradle
+++ b/build.gradle
@@ -15,7 +15,7 @@
  */
 
 buildscript {
-    ext.kotlin_version = "1.2.51"
+    ext.kotlin_version = "1.3.21"
 
     repositories {
         mavenCentral()
diff --git a/core/common/build.gradle b/core/common/build.gradle
index 768ef04..39b364c 100644
--- a/core/common/build.gradle
+++ b/core/common/build.gradle
@@ -21,8 +21,6 @@
     jcenter()
 }
 
-kotlin { experimental { coroutines 'enable' } }
-
 dependencies {
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
     implementation "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"