Clean configuration (#395)

build.gradle

@@ -1,18 +1,15 @@
 buildscript {
   apply from: "$COMMON_SETUP"
   repositories {
-    gradlePluginPortal()
     mavenCentral()
-    google()
   }
   dependencies {
-    classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$KOTLIN_VERSION"
     classpath "org.jetbrains.kotlinx:atomicfu-gradle-plugin:$ATOMICFU_VERSION"
-    classpath "com.android.tools.build:gradle:$ANDROID_TOOLS_BUILD_PLUGIN_VERSION"
   }
 }
 
 plugins {
+  id "org.jetbrains.kotlin.jvm" version "$KOTLIN_VERSION"
   id "org.jetbrains.dokka" version "$DOKKA_VERSION" apply false
   id "org.jlleitschuh.gradle.ktlint" version "$KTLINT_GRADLE_VERSION" apply false
   id "ru.vyarus.animalsniffer" version "$ANIMALS_SNIFFER_VERSION" apply false
@@ -49,16 +46,3 @@ configure(subprojects
     signature 'net.sf.androidscents.signature:android-api-level-21:5.0.1_r2@signature'
   }
 }
-
-configure(
-  [project("arrow-fx-coroutines"),
-   project("arrow-fx-coroutines-kotlinx-coroutines"),
-   project("arrow-fx-coroutines-test"),
-   project("arrow-fx-stm")]
-) {
-  apply plugin: "org.jetbrains.kotlin.jvm"
-  apply plugin: "org.jlleitschuh.gradle.ktlint"
-
-  apply from: "$SUB_PROJECT"
-  apply from: "$DOC_CREATION"
-}