Remove unused tidy dep exceptions

Author: bjorn3

src/tools/tidy/src/deps.rs

@@ -235,7 +235,6 @@ const PERMITTED_CRANELIFT_DEPENDENCIES: &[&str] = &[
     "ar",
     "autocfg",
     "bitflags",
-    "byteorder",
     "cfg-if",
     "cranelift-bforest",
     "cranelift-codegen",
@@ -248,9 +247,6 @@ const PERMITTED_CRANELIFT_DEPENDENCIES: &[&str] = &[
     "cranelift-native",
     "cranelift-object",
     "crc32fast",
-    "errno",
-    "errno-dragonfly",
-    "gcc",
     "gimli",
     "hashbrown",
     "indexmap",
@@ -259,17 +255,11 @@ const PERMITTED_CRANELIFT_DEPENDENCIES: &[&str] = &[
     "log",
     "mach",
     "object",
-    "proc-macro2",
-    "quote",
     "regalloc",
     "region",
     "rustc-hash",
     "smallvec",
-    "syn",
     "target-lexicon",
-    "thiserror",
-    "thiserror-impl",
-    "unicode-xid",
     "winapi",
     "winapi-i686-pc-windows-gnu",
     "winapi-x86_64-pc-windows-gnu",