use crate::utils::{differing_macro_contexts, snippet_opt, span_help_and_lint, span_note_and_lint};
use if_chain::if_chain;
-use rustc::declare_lint_pass;
-use rustc::lint::{in_external_macro, EarlyContext, EarlyLintPass, LintArray, LintPass};
-use rustc_session::declare_tool_lint;
+use rustc::lint::{in_external_macro, EarlyContext, EarlyLintPass};
+use rustc_session::{declare_lint_pass, declare_tool_lint};
use syntax::ast::*;
declare_clippy_lint! {