Remove service-compiler related code.

samples/github/android/GithubSample/gradle.properties

Index: samples/github/android/GithubSample/gradle.properties
diff --git a/samples/github/android/GithubSample/gradle.properties b/samples/github/android/GithubSample/gradle.properties
deleted file mode 100644
index 1d3591c8a4c9c29578c36c87f80c05a6aea3ee3f..0000000000000000000000000000000000000000
--- a/samples/github/android/GithubSample/gradle.properties
+++ /dev/null
@@ -1,18 +0,0 @@
-# Project-wide Gradle settings.
-
-# IDE (e.g. Android Studio) users:
-# Gradle settings configured through the IDE *will override*
-# any settings specified in this file.
-
-# For more details on how to configure your build environment visit
-# http://www.gradle.org/docs/current/userguide/build_environment.html
-
-# Specifies the JVM arguments used for the daemon process.
-# The setting is particularly useful for tweaking memory settings.
-# Default value: -Xmx10248m -XX:MaxPermSize=256m
-# org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
-
-# When configured, Gradle will run in incubating parallel mode.
-# This option should only be used with decoupled projects. More details, visit
-# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
-# org.gradle.parallel=true