remove uses of feature gate

Author: mark-i-m

src/doc/unstable-book/src/language-features/plugin.md

@@ -181,7 +181,6 @@ that warns about any item named `lintme`.
 ```rust,ignore
 #![feature(plugin_registrar)]
 #![feature(box_syntax, rustc_private)]
-#![feature(macro_at_most_once_rep)]
 
 extern crate syntax;
 

src/libcore/lib.rs

@@ -93,7 +93,6 @@
 #![feature(never_type)]
 #![feature(nll)]
 #![feature(exhaustive_patterns)]
-#![feature(macro_at_most_once_rep)]
 #![feature(no_core)]
 #![feature(on_unimplemented)]
 #![feature(optin_builtin_traits)]

src/librustc/lib.rs

@@ -67,7 +67,6 @@
 #![feature(integer_atomics)]
 #![feature(test)]
 #![feature(in_band_lifetimes)]
-#![feature(macro_at_most_once_rep)]
 #![feature(crate_visibility_modifier)]
 #![feature(transpose_result)]
 

src/librustc_lint/lib.rs

@@ -29,7 +29,6 @@
 #![feature(nll)]
 #![feature(quote)]
 #![feature(rustc_diagnostic_macros)]
-#![feature(macro_at_most_once_rep)]
 
 #[macro_use]
 extern crate syntax;

src/librustc_metadata/lib.rs

@@ -14,7 +14,6 @@
 
 #![feature(box_patterns)]
 #![feature(libc)]
-#![feature(macro_at_most_once_rep)]
 #![feature(nll)]
 #![feature(proc_macro_internals)]
 #![feature(proc_macro_quote)]

src/libsyntax/lib.rs

@@ -20,7 +20,6 @@
        test(attr(deny(warnings))))]
 
 #![feature(crate_visibility_modifier)]
-#![feature(macro_at_most_once_rep)]
 #![feature(nll)]
 #![feature(rustc_attrs)]
 #![feature(rustc_diagnostic_macros)]

src/test/compile-fail-fulldeps/auxiliary/lint_for_crate.rs

@@ -12,7 +12,6 @@
 
 #![feature(plugin_registrar, rustc_private)]
 #![feature(box_syntax)]
-#![feature(macro_at_most_once_rep)]
 
 #[macro_use] extern crate rustc;
 extern crate rustc_plugin;

src/test/compile-fail-fulldeps/auxiliary/lint_group_plugin_test.rs

@@ -12,7 +12,6 @@
 
 #![feature(plugin_registrar)]
 #![feature(box_syntax, rustc_private)]
-#![feature(macro_at_most_once_rep)]
 
 // Load rustc as a plugin to get macros
 #[macro_use]

src/test/compile-fail-fulldeps/auxiliary/lint_plugin_test.rs

@@ -12,7 +12,6 @@
 
 #![feature(plugin_registrar)]
 #![feature(box_syntax, rustc_private)]
-#![feature(macro_at_most_once_rep)]
 
 extern crate syntax;
 

src/test/run-pass-fulldeps/auxiliary/lint_for_crate.rs

@@ -12,7 +12,6 @@
 
 #![feature(plugin_registrar, rustc_private)]
 #![feature(box_syntax)]
-#![feature(macro_at_most_once_rep)]
 
 #[macro_use] extern crate rustc;
 extern crate rustc_plugin;