message: Remove a dead feature declaration
  Summary: Not used, copy and pasteo from when we split it from gazebo-main.
diff: @@ -9,8 +9,5 @@ repository = "https://github.com/facebookincubator/gazebo"
  documentation = "https://docs.rs/dupe"
  categories = ["rust-patterns"]
  -[features]
  -str_pattern_extensions = []
  -
  [dependencies]
  dupe_derive = { version = "0.8.0", path = "../dupe_derive" }
  