Remove hardcored version

Author: Josh Deffibaugh

build.gradle

@@ -64,7 +64,6 @@ ext {
     dexmaker_ver = "1.2"
     espresso_ver = "2.2.2"
     gson_ver = "2.6.2"
-    version_name = "0.1.2-SNAPSHOT"
     group_id = "com.optimizely.ab"
 }