Remove duplicate meta.yaml file (#196)

Summary:
This got overlooked, the new location is `.conda/meta.yaml`
Pull Request resolved: #196

Reviewed By: sdaulton

Differential Revision: D16044783

Pulled By: Balandat

fbshipit-source-id: 1d661e3ee4f381326d8b585069d00d8d465cb2a7

Author: Balandat