Merge pull request #4376 from Joining7943/tail-remove-unused-features

`tail`: Cargo.toml: Remove unneeded features of uucore and the nix dependency

Cargo.lock

@@ -3102,7 +3102,6 @@ dependencies = [
  "fundu",
  "libc",
  "memchr",
- "nix",
  "notify",
  "same-file",
  "uucore",

src/uu/tail/Cargo.toml

@@ -20,7 +20,7 @@ clap = { workspace=true }
 libc = { workspace=true }
 memchr = { workspace=true }
 notify = { workspace=true }
-uucore = { workspace=true, features=["ringbuffer", "lines"] }
+uucore = { workspace=true }
 same-file = { workspace=true }
 atty = { workspace=true }
 fundu = { workspace=true }
@@ -29,9 +29,6 @@ fundu = { workspace=true }
 windows-sys = { workspace=true, features = ["Win32_System_Threading", "Win32_Foundation"] }
 winapi-util = { workspace=true }
 
-[target.'cfg(unix)'.dependencies]
-nix = { workspace=true, features = ["fs"] }
-
 [[bin]]
 name = "tail"
 path = "src/main.rs"