Remove xplat's fb_core_android_library.bzl
Remove xplat's fb_core_android_library.bzl

Summary: D9444930 copied the file to tools and updated loads. Updating the final loads and removing xplat's copy of the file. Also reflecting the changes in oss projects

Reviewed By: scottrice

Differential Revision: D9467008

fbshipit-source-id: 74c5bed99203039687acd38316b329afba0aad89

facebook/SoLoader,facebook/SoLoader,facebook/SoLoader