Update allowed crates list

Author: JohnTitor

src/tools/tidy/src/deps.rs

@@ -77,7 +77,6 @@ const WHITELIST: &[&str] = &[
     "block-padding",
     "byte-tools",
     "byteorder",
-    "c2-chacha",
     "cc",
     "cfg-if",
     "chalk-derive",
@@ -148,7 +147,6 @@ const WHITELIST: &[&str] = &[
     "rand_pcg",
     "rand_xorshift",
     "redox_syscall",
-    "redox_termios",
     "regex",
     "regex-syntax",
     "remove_dir_all",
@@ -171,17 +169,14 @@ const WHITELIST: &[&str] = &[
     "synstructure",
     "tempfile",
     "termcolor",
-    "termion",
     "termize",
     "thread_local",
     "typenum",
-    "ucd-util",
     "unicode-normalization",
     "unicode-script",
     "unicode-security",
     "unicode-width",
     "unicode-xid",
-    "utf8-ranges",
     "vcpkg",
     "version_check",
     "wasi",