Remove jcenter repository

Author: developernotes

build.gradle

@@ -6,7 +6,7 @@ buildscript {
       google()
   }
   dependencies {
-    classpath 'com.android.tools.build:gradle:4.2.0-beta04'
+    classpath 'com.android.tools.build:gradle:4.2.1'
 
     // NOTE: Do not place your application dependencies here; they belong
     // in the individual module build.gradle files
@@ -16,7 +16,6 @@ buildscript {
 allprojects {
   repositories {
     google()
-    jcenter()
     flatDir {
       dirs 'libs'
     }