Revert "fix: eliminate unsafe code in packet construction and stats counters"

This reverts commit 3464cb801a.

easytier/Cargo.toml

@@ -217,7 +217,6 @@ smoltcp = { git = "https://github.com/smoltcp-rs/smoltcp.git", rev = "0a926767a6
     "async",
 ] }
 parking_lot = { version = "0.12.0" }
-thread_local = "1.1"
 
 wildmatch = "2.3.4"
 
@@ -344,15 +343,6 @@ futures-util = "0.3.31"
 maplit = "1.0.2"
 tempfile = "3.22.0"
 ctor = "0.8.0"
-criterion = { version = "0.5", features = ["html_reports"] }
-
-[[bench]]
-name = "acl_hotpath"
-harness = false
-
-[[bench]]
-name = "zc_packet"
-harness = false
 
 [target.'cfg(target_os = "linux")'.dev-dependencies]
 defguard_wireguard_rs = "0.4.2"