Compatibility with Gradle 5 API: don't use Task.execute()

Author: jtreanor

WordPress/build.gradle

@@ -250,18 +250,6 @@ configurations.all {
     exclude group: 'org.wordpress', module: 'analytics'
 }
 
-task copyGoogleServicesExampleFile(type: Copy) {
-    from('.')
-    into('.')
-    include('google-services.json-example')
-    rename('google-services.json-example', 'google-services.json')
-}
-
-task copyGoogleServicesBuddybuildFile(type: Copy) {
-    from(file(System.getenv("BUDDYBUILD_SECURE_FILES") + "/google-services.json"))
-    into('.')
-}
-
 task generateCrashlyticsConfig(group: "generate", description: "Generate Crashlytics config") {
     def outputFile = new File("${rootDir}/WordPress/crashlytics.properties")
     def inputFile = checkGradlePropertiesFile()
@@ -300,11 +288,11 @@ android.buildTypes.all { buildType ->
     // If Google services file doesn't exist...
     if (!file("google-services.json").exists()) {
         // ... copy example file.
-        if (!file(System.getenv("BUDDYBUILD_SECURE_FILES") + "/google-services.json").exists()) {
-            tasks.copyGoogleServicesExampleFile.execute()
-        // ... copy Buddybuild file.
-        } else {
-            tasks.copyGoogleServicesBuddybuildFile.execute()
+        copy {
+            from(".")
+            into(".")
+            include("google-services.json-example")
+            rename('google-services.json-example', 'google-services.json')
         }
     }
 
@@ -317,11 +305,7 @@ android.buildTypes.all { buildType ->
 def checkGradlePropertiesFile() {
     def inputFile = file("${rootDir}/gradle.properties")
     if (!inputFile.exists()) {
-        // Try the BuddyBuild provided file if it's there
-        inputFile = file(System.getenv("BUDDYBUILD_SECURE_FILES") + "/gradle.properties")
-        if (!inputFile.exists()) {
-            throw new StopActionException("Build configuration file gradle.properties doesn't exist, follow README instructions")
-        }
+        throw new StopActionException("Build configuration file gradle.properties doesn't exist, follow README instructions")
     }
     return inputFile
 }