Rename directories for some crates from `syntax_x` to `rustc_x`

`syntax_expand` -> `rustc_expand`
`syntax_pos` -> `rustc_span`
`syntax_ext` -> `rustc_builtin_macros`

1 files changed, 0 insertions, 12 deletions

diff --git a/src/libsyntax_ext/util.rs b/src/libsyntax_ext/util.rs
deleted file mode 100644
index aedd5aac1a9..00000000000
--- a/src/libsyntax_ext/util.rs
+++ /dev/null
@@ -1,12 +0,0 @@
-use rustc_feature::AttributeTemplate;
-use rustc_parse::validate_attr;
-use syntax::ast::MetaItem;
-use syntax_expand::base::ExtCtxt;
-use syntax_pos::Symbol;
-
-pub fn check_builtin_macro_attribute(ecx: &ExtCtxt<'_>, meta_item: &MetaItem, name: Symbol) {
-    // All the built-in macro attributes are "words" at the moment.
-    let template = AttributeTemplate::only_word();
-    let attr = ecx.attribute(meta_item.clone());
-    validate_attr::check_builtin_attribute(ecx.parse_sess, &attr, name, template);
-}