[cloud_functions] Replace Kotlin with Java

packages/cloud_functions/cloud_functions_web/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 1.0.2
+
+Delete Kotlin no-op plugin and replace with Java.
+
 ## 1.0.1
 
 Add no-op plugin implementations for iOS and Android to enable builds.

packages/cloud_functions/cloud_functions_web/android/build.gradle

@@ -2,15 +2,13 @@ group 'io.flutter.plugins.cloud_functions_web'
 version '1.0'
 
 buildscript {
-    ext.kotlin_version = '1.3.50'
     repositories {
         google()
         jcenter()
     }
 
     dependencies {
         classpath 'com.android.tools.build:gradle:3.5.0'
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }
 
@@ -22,22 +20,14 @@ rootProject.allprojects {
 }
 
 apply plugin: 'com.android.library'
-apply plugin: 'kotlin-android'
 
 android {
     compileSdkVersion 28
 
-    sourceSets {
-        main.java.srcDirs += 'src/main/kotlin'
-    }
     defaultConfig {
         minSdkVersion 16
     }
     lintOptions {
         disable 'InvalidPackage'
     }
 }
-
-dependencies {
-    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
-}

packages/cloud_functions/cloud_functions_web/android/src/main/java/io/flutter/plugins/cloud_functions_web/CloudFunctionsWebPlugin.java

@@ -0,0 +1,21 @@
+/*
+ * Copyright 2020 The Chromium Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+package io.flutter.plugins.cloud_functions_web;
+
+import io.flutter.embedding.engine.plugins.FlutterPlugin;
+import io.flutter.plugin.common.PluginRegistry.Registrar;
+
+/** CloudFunctionsWebPlugin */
+public class CloudFunctionsWebPlugin implements FlutterPlugin {
+  @Override
+  public void onAttachedToEngine(FlutterPluginBinding flutterPluginBinding) {}
+
+  public static void registerWith(Registrar registrar) {}
+
+  @Override
+  public void onDetachedFromEngine(FlutterPluginBinding binding) {}
+}

packages/cloud_functions/cloud_functions_web/pubspec.yaml

@@ -1,7 +1,7 @@
 name: cloud_functions_web
 description: The web implementation of cloud_functions
 homepage: https://github.com/FirebaseExtended/flutterfire/tree/master/packages/cloud_functions/cloud_functions_web
-version: 1.0.1
+version: 1.0.2
 
 flutter:
   plugin: