remove useless

rust/remove_os_check.patch

@@ -1,19 +0,0 @@
-diff --git a/crates/iptables/src/lib.rs b/crates/iptables/src/lib.rs
-index 4a4d6dc..e7d15fc 100644
---- a/src/lib.rs
-+++ b/src/lib.rs
-@@ -92,14 +92,6 @@ pub struct IPTables {
-     pub is_numeric: bool,
- }
- 
--/// Returns `None` because iptables only works on linux
--#[cfg(not(target_os = "linux"))]
--pub fn new(is_ipv6: bool) -> Result<IPTables, Box<dyn Error>> {
--    Err(error_from_str("iptables only works on Linux"))
--}
--
--/// Creates a new `IPTables` Result with the command of 'iptables' if `is_ipv6` is `false`, otherwise the command is 'ip6tables'.
--#[cfg(target_os = "linux")]
- pub fn new(is_ipv6: bool) -> Result<IPTables, Box<dyn Error>> {
-     let cmd = if is_ipv6 { "ip6tables" } else { "iptables" };
-