Remove unused features in tools

Author: mu001999

src/tools/miri/src/lib.rs

@@ -1,4 +1,3 @@
-#![feature(abort_unwind)]
 #![feature(cfg_select)]
 #![feature(rustc_private)]
 #![feature(float_gamma)]
@@ -7,16 +6,13 @@
 #![feature(never_type)]
 #![feature(try_blocks)]
 #![feature(io_error_more)]
-#![feature(if_let_guard)]
 #![feature(variant_count)]
 #![feature(yeet_expr)]
-#![feature(nonzero_ops)]
 #![feature(pointer_is_aligned_to)]
-#![feature(ptr_metadata)]
 #![feature(unqualified_local_imports)]
 #![feature(derive_coerce_pointee)]
 #![feature(arbitrary_self_types)]
-#![feature(iter_advance_by)]
+#![cfg_attr(all(unix, feature = "native-lib"), feature(abort_unwind, iter_advance_by))]
 // Configure clippy and other lints
 #![allow(
     clippy::collapsible_else_if,

src/tools/rust-analyzer/crates/proc-macro-api/src/lib.rs

@@ -8,7 +8,7 @@
 #![cfg_attr(not(feature = "sysroot-abi"), allow(unused_crate_dependencies))]
 #![cfg_attr(
     feature = "sysroot-abi",
-    feature(proc_macro_internals, proc_macro_diagnostic, proc_macro_span)
+    feature(proc_macro_internals)
 )]
 #![allow(internal_features)]
 #![cfg_attr(feature = "in-rust-tree", feature(rustc_private))]

src/tools/rust-analyzer/crates/proc-macro-srv/src/lib.rs

@@ -12,7 +12,7 @@
 
 #![cfg(feature = "sysroot-abi")]
 #![cfg_attr(feature = "in-rust-tree", feature(rustc_private))]
-#![feature(proc_macro_internals, proc_macro_diagnostic, proc_macro_span)]
+#![feature(proc_macro_internals)]
 #![allow(
     unreachable_pub,
     internal_features,