MNEMONIC-577: Enable the whole project Gradle building

Signed-off-by: Chunyong He <chunyong.he@gmail.com>
diff --git a/build.gradle b/build.gradle
index 1aacdb0..a9b9ab3 100644
--- a/build.gradle
+++ b/build.gradle
@@ -64,7 +64,3 @@
   configurations.all {
   }
 }
-
-build.doFirst {
-   throw new GradleException('The Gradle is not functional yet.')
-}