Revert "Disable AArch64 FP-to-int tests"

This reverts commit 9e76b9115fa9571501d378b6329ce557266908b7.

testcrate/tests/conv.rs

@@ -95,8 +95,6 @@ macro_rules! f_to_i {
     };
 }
 
-// AArch64 tests are currently broken due to https://github.com/rust-lang/rust/issues/83467
-#[cfg(not(target_arch = "aarch64"))]
 #[test]
 fn float_to_int() {
     use compiler_builtins::float::conv::{