Remove some unused macros from the rust codebase

Removes unused macros from:
  * libcore
  * libcollections
    The last use of these two macros was removed in commit
    b64c9d56700e2c41207166fe8709711ff02488ff
    when the char_range_at_reverse function was been removed.
  * librustc_errors
    Their last use was removed by commits
    2f2c3e178325dc1837badcd7573c2c0905fab979
    and 11dc974a38fd533aa692cea213305056cd3a6902.
  * libsyntax_ext
  * librustc_trans
    Also, put the otry macro in back/msvc/mod.rs under the
    same cfg argument as the places that use it.

1 files changed, 0 insertions, 6 deletions

diff --git a/src/libsyntax_ext/deriving/mod.rs b/src/libsyntax_ext/deriving/mod.rs
index b2bb43e41ed..31c7cc33676 100644
--- a/src/libsyntax_ext/deriving/mod.rs
+++ b/src/libsyntax_ext/deriving/mod.rs
@@ -25,12 +25,6 @@ macro_rules! pathvec {
     )
 }
 
-macro_rules! path {
-    ($($x:tt)*) => (
-        ::ext::deriving::generic::ty::Path::new( pathvec![ $($x)* ] )
-    )
-}
-
 macro_rules! path_local {
     ($x:ident) => (
         ::deriving::generic::ty::Path::new_local(stringify!($x))