remove unused import
Summary:
This file gives "warning: unused import: `ocamlrep::rc::RcOc`"
It started giving that warning ever since
D27154091 (https://github.com/facebook/hhvm/commit/
2319dfcc38f366de0b0ec2f7d21752bf39fc33d0), which removed the last use of it.
Say, shiqicao, I have a question about that diff. Its summary says "we don't need to copy env anymore. The diff removes the call to make_env from hhbc/emit_memoize_method.rs. But why didn't it also remove the exact same call from hhbc_by_ref/emit_memoize_method.rs ?
Reviewed By: bobrenjc93
Differential Revision:
D27209219
fbshipit-source-id:
d7a1da5febe0bfa40fff3053fecbc2abd6a885cf