Drop the ptr_addr_of conditional

This is possible since increasing the MSRV to 1.63

(apply <#4065> to `main`)
(cherry picked from commit 85eac5f)

Author: tgross35

src/macros.rs

@@ -273,9 +273,3 @@ macro_rules! __item {
         $i
     };
 }
-
-macro_rules! ptr_addr_of {
-    ($place:expr) => {
-        ::core::ptr::addr_of!($place)
-    };
-}

src/wasi/mod.rs

@@ -382,16 +382,16 @@ cfg_if! {
         // unsafe code here is required in the stable, but not in nightly
         #[allow(unused_unsafe)]
         pub static CLOCK_MONOTONIC: clockid_t =
-            unsafe { clockid_t(ptr_addr_of!(_CLOCK_MONOTONIC)) };
+            clockid_t(core::ptr::addr_of!(_CLOCK_MONOTONIC));
         #[allow(unused_unsafe)]
         pub static CLOCK_PROCESS_CPUTIME_ID: clockid_t =
-            unsafe { clockid_t(ptr_addr_of!(_CLOCK_PROCESS_CPUTIME_ID)) };
+            clockid_t(core::ptr::addr_of!(_CLOCK_PROCESS_CPUTIME_ID));
         #[allow(unused_unsafe)]
         pub static CLOCK_REALTIME: clockid_t =
-            unsafe { clockid_t(ptr_addr_of!(_CLOCK_REALTIME)) };
+            clockid_t(core::ptr::addr_of!(_CLOCK_REALTIME));
         #[allow(unused_unsafe)]
         pub static CLOCK_THREAD_CPUTIME_ID: clockid_t =
-            unsafe { clockid_t(ptr_addr_of!(_CLOCK_THREAD_CPUTIME_ID)) };
+            clockid_t(core::ptr::addr_of!(_CLOCK_THREAD_CPUTIME_ID));
     }
 }