ls: remove the unused dep on locale

Cargo.lock

@@ -1004,15 +1004,6 @@ dependencies = [
  "winapi 0.3.9",
 ]
 
-[[package]]
-name = "locale"
-version = "0.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5fdbe492a9c0238da900a1165c42fc5067161ce292678a6fe80921f30fe307fd"
-dependencies = [
- "libc",
-]
-
 [[package]]
 name = "lock_api"
 version = "0.4.4"
@@ -2615,7 +2606,6 @@ dependencies = [
  "clap",
  "globset",
  "lazy_static",
- "locale",
  "lscolors",
  "number_prefix",
  "once_cell",

src/uu/ls/Cargo.toml

@@ -15,7 +15,6 @@ edition = "2018"
 path = "src/ls.rs"
 
 [dependencies]
-locale = "0.2.2"
 chrono = "0.4.19"
 clap = { version = "2.33", features = ["wrap_help"] }
 unicode-width = "0.1.8"