Revert "[rust] allow unused-macro-rules to unblock toolchain roll"

This reverts commit 9d8f965.

Reason for revert: lint is allow-by-default after rust-lang/rust#97032

Original change's description:
> [rust] allow unused-macro-rules to unblock toolchain roll
>
> Bug: 100318
> Change-Id: Ided9428282c66e63cda934a5f456223750703179
> Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/679506
> Reviewed-by: Joseph Ryan <josephry@google.com>
> Fuchsia-Auto-Submit: Dan Johnson <computerdruid@google.com>
> Reviewed-by: Tyler Mandry <tmandry@google.com>
> Commit-Queue: Auto-Submit <auto-submit@fuchsia-infra.iam.gserviceaccount.com>

Bug: 100318
Change-Id: I2ebf0b0e9c9e28d8a2588fc92dfe7428c77ca4cf
Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/679988
Reviewed-by: RubberStamper 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Commit-Queue: Dan Johnson <computerdruid@google.com>
Reviewed-by: Joseph Ryan <josephry@google.com>

Author: ComputerDruid

src/connectivity/lib/internet-checksum/src/lib.rs

@@ -161,8 +161,6 @@ type Accumulator = u64;
 // on other platforms.
 const SMALL_BUF_THRESHOLD: usize = 64;
 
-#[allow(unknown_lints)] // TODO(fxbug.dev/99424): remove this after toolchain roll when lint is known
-#[allow(unused_macro_rules)] // TODO(fxbug.dev/100318): remove unused macro rules and re-enable
 /// The following macro unrolls operations on u16's to wider integers.
 ///
 /// # Arguments

src/connectivity/lib/packet-formats/src/macros.rs

@@ -226,8 +226,6 @@ macro_rules! __create_protocol_enum_inner {
     };
 }
 
-#[allow(unknown_lints)] // TODO(fxbug.dev/99424): remove this after toolchain roll when lint is known
-#[allow(unused_macro_rules)] // TODO(fxbug.dev/100318): remove unused macro rules and re-enable
 /// Create an enum representing a protocol number (such as IP protocol or
 /// EtherType).
 ///

src/connectivity/lowpan/lib/spinel_pack/src/primitives.rs

@@ -27,8 +27,6 @@ macro_rules! impl_try_array_owned_unpack_sized(
     }
 );
 
-#[allow(unknown_lints)] // TODO(fxbug.dev/99424): remove this after toolchain roll when lint is known
-#[allow(unused_macro_rules)] // TODO(fxbug.dev/100318): remove unused macro rules and re-enable
 macro_rules! impl_try_pack_unpack_as_data(
     (u8) => {
         // We skip u8.

src/connectivity/network/netstack3/core/src/ip/gmp/mod.rs

@@ -17,8 +17,6 @@
 
 // This macro is used by tests in both the `igmp` and `mld` modules.
 
-#[allow(unknown_lints)] // TODO(fxbug.dev/99424): remove this after toolchain roll when lint is known
-#[allow(unused_macro_rules)] // TODO(fxbug.dev/100318): remove unused macro rules and re-enable
 /// Assert that the GMP state machine for `$group` is in the given state.
 ///
 /// `$ctx` is a `context::testutil::DummyCtx` whose state contains a `groups:

src/connectivity/network/netstack3/core/src/macros.rs

@@ -4,8 +4,6 @@
 
 //! Macros used in Netstack3.
 
-#[allow(unknown_lints)] // TODO(fxbug.dev/99424): remove this after toolchain roll when lint is known
-#[allow(unused_macro_rules)] // TODO(fxbug.dev/100318): remove unused macro rules and re-enable
 macro_rules! log_unimplemented {
     ($nocrash:expr, $fmt:expr $(,$arg:expr)*) => {{
 

src/lib/cobalt/rust/src/sender.rs

@@ -16,8 +16,6 @@ use {
     },
 };
 
-#[allow(unknown_lints)] // TODO(fxbug.dev/99424): remove this after toolchain roll when lint is known
-#[allow(unused_macro_rules)] // TODO(fxbug.dev/100318): remove unused macro rules and re-enable
 macro_rules! gen_comment {
     ($x:expr) => {
         #[doc = $x]

src/lib/mundane/src/boringssl/abort.rs

@@ -14,8 +14,6 @@
 
 use std::fmt::Debug;
 
-#[allow(unknown_lints)] // TODO(fxbug.dev/99424): remove this after toolchain roll when lint is known
-#[allow(unused_macro_rules)] // TODO(fxbug.dev/100318): remove unused macro rules and re-enable
 macro_rules! assert_abort {
     ($cond:expr) => ({
         let cond = $cond;
@@ -32,8 +30,6 @@ macro_rules! assert_abort {
     });
 }
 
-#[allow(unknown_lints)] // TODO(fxbug.dev/99424): remove this after toolchain roll when lint is known
-#[allow(unused_macro_rules)] // TODO(fxbug.dev/100318): remove unused macro rules and re-enable
 macro_rules! assert_abort_eq {
     ($left:expr, $right:expr) => ({
         match (&$left, &$right) {
@@ -76,8 +72,6 @@ macro_rules! unreachable_abort {
     }};
 }
 
-#[allow(unknown_lints)] // TODO(fxbug.dev/99424): remove this after toolchain roll when lint is known
-#[allow(unused_macro_rules)] // TODO(fxbug.dev/100318): remove unused macro rules and re-enable
 macro_rules! panic_abort {
     () => ({
         panic_abort!("explicit panic")

src/lib/mundane/src/boringssl/mod.rs

@@ -798,8 +798,6 @@ pub fn rsa_verify_pss_mgf1(
     }
 }
 
-#[allow(unknown_lints)] // TODO(fxbug.dev/99424): remove this after toolchain roll when lint is known
-#[allow(unused_macro_rules)] // TODO(fxbug.dev/100318): remove unused macro rules and re-enable
 /// Implements `CStackWrapper` for a hash context type.
 ///
 /// The caller provides doc comments, a public method name, and a private

src/lib/mundane/src/boringssl/wrapper.rs

@@ -20,8 +20,6 @@ macro_rules! sealed {
     };
 }
 
-#[allow(unknown_lints)] // TODO(fxbug.dev/99424): remove this after toolchain roll when lint is known
-#[allow(unused_macro_rules)] // TODO(fxbug.dev/100318): remove unused macro rules and re-enable
 macro_rules! impl_traits {
     (@inner $name:ident, CNew => $fn:tt) => {
         c_new!($name, $fn);

src/lib/storage/vfs/rust/src/path.rs

@@ -182,8 +182,6 @@ impl AsRef<str> for Path {
 mod tests {
     use super::*;
 
-    #[allow(unknown_lints)] // TODO(fxbug.dev/99424): remove this after toolchain roll when lint is known
-    #[allow(unused_macro_rules)] // TODO(fxbug.dev/100318): remove unused macro rules and re-enable
     macro_rules! simple_construction_test {
         (path: $str:expr, $path:ident => $body:block) => {
             match Path::validate_and_split($str) {