Remove the package exclusions (#51)

Summary:
It's all a little confusing but downstream consumers of Flipper
that don't use CMake themselves otherwise don't have access to these
libraries and will have them missing from their builds.

I'll create an 0.2.0 release for this so 0.1.0 consumers don't
end up with multiple binaries.

Pull Request resolved: facebookincubator/fbjni#51

Test Plan:
Tested locally with Flipper and a stand-alone example and it seems to
work.

Reviewed By: mweststrate

Differential Revision: D26815786

Pulled By: passy

fbshipit-source-id: c70b56952acbe6e3be4ef74da2e4115651ce8e9c

first-party/fbjni/build.gradle

@@ -81,14 +81,6 @@ android {
                 headers 'cxx/'
             }
         }
-
-        // There's a bug in prefab that will bundle all these twice, causing the
-        // consumer to get duplicate errors.
-        // Followed the advice from https://github.com/chancezeus/libjpeg-turbo-android-prefab/blob/18eaa325e9954b832c9f3c95e141361d86746528/libjpeg-turbo/build.gradle
-        packagingOptions {
-            exclude("**/libfbjni.so")
-            exclude("**/libc++_shared.so")
-        }
     }
 }