Cleanup dependencies and features

Cargo.toml

@@ -23,21 +23,16 @@ name = "cargo-clippy"
 test = false
 
 [dependencies]
-regex-syntax = "0.3.0"
 regex_macros = { version = "0.1.33", optional = true }
-semver = "0.2.1"
-toml = "0.1"
-unicode-normalization = "0.1"
-quine-mc_cluskey = "0.2.2"
 # begin automatic update
 clippy_lints = { version = "0.0.75", path = "clippy_lints" }
 # end automatic update
-rustc-serialize = "0.3"
 
 [dev-dependencies]
 compiletest_rs = "0.2.0"
 lazy_static = "0.1.15"
 regex = "0.1.56"
+rustc-serialize = "0.3"
 
 [features]
 debugging = []

clippy_lints/src/lib.rs

@@ -1,17 +1,16 @@
 // error-pattern:cargo-clippy
 
-#![feature(type_macros)]
+#![feature(box_syntax)]
-#![feature(plugin_registrar, box_syntax)]
+#![feature(collections)]
-#![feature(rustc_private, collections)]
-#![feature(iter_arith)]
 #![feature(custom_attribute)]
-#![feature(slice_patterns)]
+#![feature(iter_arith)]
 #![feature(question_mark)]
+#![feature(rustc_private)]
+#![feature(slice_patterns)]
 #![feature(stmt_expr_attributes)]
-#![allow(indexing_slicing, shadow_reuse, unknown_lints)]
+#![feature(type_macros)]
 
-extern crate rustc_driver;
+#![allow(indexing_slicing, shadow_reuse, unknown_lints)]
-extern crate getopts;
 
 #[macro_use]
 extern crate syntax;

src/lib.rs

@@ -1,55 +1,15 @@
 // error-pattern:cargo-clippy
-#![feature(type_macros)]
+#![feature(plugin_registrar)]
-#![feature(plugin_registrar, box_syntax)]
+#![feature(rustc_private)]
-#![feature(rustc_private, collections)]
+#![allow(unknown_lints)]
-#![feature(custom_attribute)]
-#![feature(slice_patterns)]
-#![feature(question_mark)]
-#![feature(stmt_expr_attributes)]
-#![allow(indexing_slicing, shadow_reuse, unknown_lints)]
-
-#[macro_use]
-extern crate syntax;
-#[macro_use]
-extern crate rustc;
-
-extern crate toml;
-
-// Only for the compile time checking of paths
-extern crate core;
-extern crate collections;
-
-// for unicode nfc normalization
-extern crate unicode_normalization;
-
-// for semver check in attrs.rs
-extern crate semver;
-
-// for regex checking
-extern crate regex_syntax;
-
-// for finding minimal boolean expressions
-extern crate quine_mc_cluskey;
 
 extern crate rustc_plugin;
-extern crate rustc_const_eval;
-extern crate rustc_const_math;
 use rustc_plugin::Registry;
 
 extern crate clippy_lints;
 
 pub use clippy_lints::*;
 
-macro_rules! declare_restriction_lint {
-    { pub $name:tt, $description:tt } => {
-        declare_lint! { pub $name, Allow, $description }
-    };
-}
-
-mod reexport {
-    pub use syntax::ast::{Name, NodeId};
-}
-
 #[plugin_registrar]
 pub fn plugin_registrar(reg: &mut Registry) {
     register_plugins(reg);

src/main.rs

@@ -1,7 +1,6 @@
 // error-pattern:yummy
 #![feature(box_syntax)]
 #![feature(rustc_private)]
-#![feature(slice_patterns)]
 
 extern crate rustc_driver;
 extern crate getopts;
@@ -9,7 +8,6 @@ extern crate rustc;
 extern crate syntax;
 extern crate rustc_plugin;
 extern crate clippy_lints;
-extern crate rustc_serialize;
 
 use rustc_driver::{driver, CompilerCalls, RustcDefaultCalls, Compilation};
 use rustc::session::{config, Session};