Removing some unused imports

Author: alexcrichton

src/librustc/middle/typeck/check/regionck.rs

@@ -32,7 +32,6 @@ use core::prelude::*;
 use middle::freevars::get_freevars;
 use middle::pat_util::{pat_bindings, pat_is_binding};
 use middle::ty::{encl_region, re_scope};
-use middle::ty::{vstore_box, vstore_fixed, vstore_slice};
 use middle::ty;
 use middle::typeck::check::FnCtxt;
 use middle::typeck::check::lookup_def;

src/librustc/middle/typeck/check/regionmanip.rs

@@ -20,8 +20,6 @@ use util::ppaux::region_to_str;
 use util::ppaux;
 
 use std::list::Cons;
-use syntax::ast;
-use syntax::codemap;
 
 // Helper functions related to manipulating region types.
 

src/librustc/middle/typeck/mod.rs

@@ -51,7 +51,6 @@ independently:
 use core::prelude::*;
 
 use middle::resolve;
-use middle::ty::{ty_param_substs_and_ty, vstore_uniq};
 use middle::ty;
 use util::common::time;
 use util::ppaux;