Use regular Kotlin stdlib dependency

Author: Nick Rout

MaterialThemeBuilder/app/build.gradle

@@ -30,7 +30,7 @@ dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
 
     // Kotlin
-    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
+    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
 
     // AndroidX
     implementation 'androidx.appcompat:appcompat:1.2.0'