Reduce dependencies on Bintray/jcenter

Bintray/JCenter have been deprecated, so remove some references have been removed.

build.gradle

@@ -10,7 +10,6 @@ buildscript {
         mavenLocal()
         google()
         mavenCentral()
-        jcenter()
         maven {
             url 'https://jitpack.io'
         }
@@ -48,7 +47,6 @@ apply plugin: 'com.vanniktech.maven.publish'
 repositories {
     google()
     mavenCentral()
-    jcenter()
     maven { url 'https://jitpack.io' }
 }
 

samples/demo-app/build.gradle

@@ -2,10 +2,10 @@
 
 
 buildscript {
-    ext.kotlin_version = '1.4.0'
+    ext.kotlin_version = '1.5.30'
     repositories {
-        google ()
-        jcenter()
+        google()
+        mavenCentral()
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:7.0.1'
@@ -20,11 +20,9 @@ allprojects {
     repositories {
         mavenLocal()
         google()
+        mavenCentral()
         jcenter()
         maven { url 'https://jitpack.io' }
-        maven {
-            url "https://dl.bintray.com/ecc-mobile/android"
-        }
     }
 }