crc32: remove #[cfg(not(target_arch = "arm"))] from crc functions

They are defined in the aarch64 module, so this cfg is pointless.

Note that these instructions do exist for arm, but the aarch64 ones are
already stable, so this would need some additional work to implement
them for arm.

library/stdarch/crates/core_arch/src/aarch64/neon/generated.rs

@@ -16,7 +16,6 @@ use super::*;
 #[doc = "[Arm's documentation](https://developer.arm.com/architectures/instruction-sets/intrinsics/__crc32cd)"]
 #[inline]
 #[target_feature(enable = "crc")]
-#[cfg(not(target_arch = "arm"))]
 #[cfg_attr(test, assert_instr(crc32cx))]
 #[stable(feature = "stdarch_aarch64_crc32", since = "1.80.0")]
 pub fn __crc32cd(crc: u32, data: u64) -> u32 {
@@ -33,7 +32,6 @@ pub fn __crc32cd(crc: u32, data: u64) -> u32 {
 #[doc = "[Arm's documentation](https://developer.arm.com/architectures/instruction-sets/intrinsics/__crc32d)"]
 #[inline]
 #[target_feature(enable = "crc")]
-#[cfg(not(target_arch = "arm"))]
 #[cfg_attr(test, assert_instr(crc32x))]
 #[stable(feature = "stdarch_aarch64_crc32", since = "1.80.0")]
 pub fn __crc32d(crc: u32, data: u64) -> u32 {

library/stdarch/crates/stdarch-gen-arm/spec/neon/aarch64.spec.yml

@@ -13,10 +13,6 @@ auto_llvm_sign_conversion: false
 neon-stable: &neon-stable
   FnCall: [stable, ['feature = "neon_intrinsics"', 'since = "1.59.0"']]
 
-# #[cfg(not(target_arch = "arm"))]
-target-not-arm: &target-not-arm
-  FnCall: [cfg, [{ FnCall: [not, ['target_arch = "arm"']]}]]
-
 # #[cfg(not(target_arch = "arm64ec"))]
 target-not-arm64ec: &target-not-arm64ec
   FnCall: [cfg, [{ FnCall: [not, ['target_arch = "arm64ec"']]}]]
@@ -13082,7 +13078,6 @@ intrinsics:
     return_type: "{type[0]}"
     attr:
       - FnCall: [target_feature, ['enable = "crc"']]
-      - *target-not-arm
       - FnCall: [cfg_attr, [test, { FnCall: [assert_instr, ["crc32x"]] }]]
       - *aarch64-crc-stable
     safety: safe
@@ -13104,7 +13099,6 @@ intrinsics:
     return_type: "{type[0]}"
     attr:
       - FnCall: [target_feature, ['enable = "crc"']]
-      - *target-not-arm
       - FnCall: [cfg_attr, [test, { FnCall: [assert_instr, ["crc32cx"]] }]]
       - *aarch64-crc-stable
     safety: safe