Update README.md

Author: bootpay

README.md

@@ -70,82 +70,6 @@ Bootpay.init(getFragmentManager())
         .show();
 ```
 
-
-# Java8 - Lambda 지원
-
-## build.gradle (Module)
-```gradle
-android {
-    ...
-    defaultConfig {
-        ...
-        jackOptions {
-            enabled true
-        }
-    }
-    ...
-    compileOptions {
-        targetCompatibility 1.8
-        sourceCompatibility 1.8
-    }
-}
-```
-
-## 샘플 코드
-```java
-Bootpay.init(getFragmentManager())
-        .setApplicationId("593f8febe13f332431a8ddae")
-        .setPG(PG.DANAL)
-        .setMethod(Method.CARD)
-        .setName("맥북프로임다")
-        .setOrderId(String.valueOf(System.currentTimeMillis()))
-        .setPrice(1000)
-        .addItem("마우스", 1, "123", 100)
-        .addItem("키보드", 1, "122", 200)
-        .onCancel(s -> Log.d("cancel", s))
-        .onConfirm(s -> Log.d("confirm", s))
-        .onDone(s -> Log.d("done", s))
-        .onError(s -> Log.d("error", s))
-        .show();
-```
-
-# [Kotlin](http://kotlinlang.org/) 설정
-## build.gradle (Project)
-```gradle
-buildscript {
-    dependencies {
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.1.4"
-    }
-}
-```
-
-## build.gradle (Module)
-```gradle
-apply plugin: 'kotlin-android'
-
-dependencies {
-    compile 'org.jetbrains.kotlin:kotlin-stdlib-jre7:1.1.4'
-}
-```
-
-## 샘플 코드
-```kotlin
-Bootpay.init(fragmentManager)
-        .setApplicationId("593f8febe13f332431a8ddae")
-        .setPG(PG.DANAL)
-        .setMethod(Method.SELECT)
-        .setName("맥북프로임다")
-        .setOrderId(System.currentTimeMillis().toString())
-        .setPrice(1000)
-        .addItem("마우스", 1, "123", 100)
-        .addItem("키보드", 1, "122", 200)
-        .onCancel { Log.d("cancel", it) }
-        .onConfirm { Log.d("confirm", it) }
-        .onDone { Log.d("done", it) }
-        .onError { Log.d("error", it) }
-        .show()
-```
-
 <hr/>
 
 ### 더 자세한 정보는 [Wiki](https://github.com/bootpay/client_android_java/wiki)를 참조해주세요.