simplify epoll_event packed check

Author: rmehri01

src/unix/linux_like/mod.rs

@@ -284,17 +284,7 @@ cfg_if! {
 }
 
 s_no_extra_traits! {
-    #[cfg_attr(
-        any(
-            all(
-                target_arch = "x86",
-                not(target_env = "musl"),
-                not(target_os = "android")
-            ),
-            target_arch = "x86_64"
-        ),
-        repr(packed)
-    )]
+    #[cfg_attr(any(target_arch = "x86_64", target_env = "gnu"), repr(packed))]
     pub struct epoll_event {
         pub events: u32,
         pub data: epoll_data,