Remove rustc_diagnostic_macros feature

Author: Mark-Simulacrum

src/librustc/lib.rs

@@ -45,7 +45,6 @@
 #![feature(non_exhaustive)]
 #![feature(optin_builtin_traits)]
 #![feature(range_is_empty)]
-#![feature(rustc_diagnostic_macros)]
 #![feature(slice_patterns)]
 #![feature(specialization)]
 #![feature(unboxed_closures)]

src/librustc_codegen_llvm/lib.rs

@@ -14,7 +14,6 @@
 #![feature(in_band_lifetimes)]
 #![feature(libc)]
 #![feature(nll)]
-#![feature(rustc_diagnostic_macros)]
 #![feature(optin_builtin_traits)]
 #![feature(concat_idents)]
 #![feature(link_args)]

src/librustc_codegen_ssa/lib.rs

@@ -4,7 +4,6 @@
 #![feature(box_syntax)]
 #![feature(core_intrinsics)]
 #![feature(libc)]
-#![feature(rustc_diagnostic_macros)]
 #![feature(stmt_expr_attributes)]
 #![feature(try_blocks)]
 #![feature(in_band_lifetimes)]

src/librustc_codegen_utils/lib.rs

@@ -10,7 +10,6 @@
 #![feature(core_intrinsics)]
 #![feature(never_type)]
 #![feature(nll)]
-#![feature(rustc_diagnostic_macros)]
 #![feature(in_band_lifetimes)]
 
 #![recursion_limit="256"]

src/librustc_driver/lib.rs

@@ -9,7 +9,6 @@
 #![feature(box_syntax)]
 #![cfg_attr(unix, feature(libc))]
 #![feature(nll)]
-#![feature(rustc_diagnostic_macros)]
 #![feature(set_stdio)]
 #![feature(no_debug)]
 #![feature(integer_atomics)]

src/librustc_interface/passes.rs

@@ -291,10 +291,6 @@ pub fn register_plugins<'a>(
     let mut registry = Registry::new(sess, krate.span);
 
     time(sess, "plugin registration", || {
-        if sess.features_untracked().rustc_diagnostic_macros {
-            // FIXME: remove feature gate
-        }
-
         for registrar in registrars {
             registry.args_hidden = Some(registrar.args);
             (registrar.fun)(&mut registry);

src/librustc_lint/lib.rs

@@ -15,7 +15,6 @@
 #![feature(box_patterns)]
 #![feature(box_syntax)]
 #![feature(nll)]
-#![feature(rustc_diagnostic_macros)]
 
 #![recursion_limit="256"]
 

src/librustc_metadata/lib.rs

@@ -8,7 +8,6 @@
 #![feature(nll)]
 #![feature(proc_macro_internals)]
 #![feature(proc_macro_quote)]
-#![feature(rustc_diagnostic_macros)]
 #![feature(rustc_private)]
 #![feature(slice_patterns)]
 #![feature(specialization)]

src/librustc_mir/lib.rs

@@ -14,7 +14,6 @@ Rust MIR: a lowered representation of Rust. Also: an experiment!
 #![feature(const_fn)]
 #![feature(decl_macro)]
 #![feature(exhaustive_patterns)]
-#![feature(rustc_diagnostic_macros)]
 #![feature(never_type)]
 #![feature(specialization)]
 #![feature(try_trait)]

src/librustc_passes/lib.rs

@@ -9,7 +9,6 @@
 #![feature(in_band_lifetimes)]
 #![feature(nll)]
 #![feature(bind_by_move_pattern_guards)]
-#![feature(rustc_diagnostic_macros)]
 
 #![recursion_limit="256"]