message: Delete Dialect::Simple
  Summary: The Simple dialect was inspired by the subset of Starlark enabled by Buck/Bazel for build files. But exactly what that should be is really up to Buck/Bazel, not this Starlark library, so stick to just Standard and Extended.
diff: @@ -60,18 +60,6 @@ pub struct Dialect {
  // even though they are actually global constants
  #[allow(non_upper_case_globals)]
  impl Dialect {
  - /// Build file dialect which is used to interpret BUILD files - lacks `def`.
  - pub const Simple: Self = Self {
  - enable_def: false,
  - enable_lambda: true,
  - enable_load: true,
  - enable_keyword_only_arguments: false,
  - enable_types: false,
  - enable_tabs: true,
  - enable_load_reexport: false,
  - enable_top_level_stmt: false,
  - };
  -
  /// The Starlark language as specified in https://github.com/bazelbuild/starlark/blob/master/spec.md
  pub const Standard: Self = Self {
  enable_def: true,
  