remove unused imports

Author: Jorge Aparicio

src/libcollections/slice.rs

@@ -94,7 +94,7 @@ use core::clone::Clone;
 use core::cmp::Ordering::{self, Greater, Less};
 use core::cmp::{self, Ord, PartialEq};
 use core::iter::{Iterator, IteratorExt};
-use core::iter::{range, range_step, MultiplicativeIterator};
+use core::iter::{range_step, MultiplicativeIterator};
 use core::marker::Sized;
 use core::mem::size_of;
 use core::mem;

src/libcollections/str.rs

@@ -59,7 +59,7 @@ use core::borrow::{BorrowFrom, ToOwned};
 use core::char::CharExt;
 use core::clone::Clone;
 use core::iter::AdditiveIterator;
-use core::iter::{range, Iterator, IteratorExt};
+use core::iter::{Iterator, IteratorExt};
 use core::ops::{FullRange, Index};
 use core::option::Option::{self, Some, None};
 use core::slice::AsSlice;

src/libcore/fmt/float.rs

@@ -17,7 +17,7 @@ pub use self::SignFormat::*;
 use char;
 use char::CharExt;
 use fmt;
-use iter::{IteratorExt, range};
+use iter::IteratorExt;
 use num::{cast, Float, ToPrimitive};
 use num::FpCategory as Fp;
 use ops::FnOnce;

src/libcore/fmt/mod.rs

@@ -16,7 +16,7 @@
 use any;
 use cell::{Cell, RefCell, Ref, RefMut};
 use char::CharExt;
-use iter::{Iterator, IteratorExt, range};
+use iter::{Iterator, IteratorExt};
 use marker::{Copy, Sized};
 use mem;
 use option::Option;

src/libcore/str/mod.rs

@@ -23,7 +23,6 @@ use default::Default;
 use error::Error;
 use fmt;
 use iter::ExactSizeIterator;
-use iter::range;
 use iter::{Map, Iterator, IteratorExt, DoubleEndedIterator};
 use marker::Sized;
 use mem;

src/libstd/old_io/tempfile.rs

@@ -12,7 +12,7 @@
 
 use old_io::{fs, IoError, IoErrorKind, IoResult};
 use old_io;
-use iter::{IteratorExt, range};
+use iter::IteratorExt;
 use ops::Drop;
 use option::Option;
 use option::Option::{None, Some};

src/libsyntax/diagnostic.rs

@@ -20,7 +20,6 @@ use diagnostics;
 use std::cell::{RefCell, Cell};
 use std::fmt;
 use std::old_io;
-use std::iter::range;
 use std::string::String;
 use term::WriterWrapper;
 use term;