Remove unused imports throughout

src/libcore/flate.rs

@@ -17,10 +17,10 @@ Simple compression
 use libc;
 use libc::{c_void, size_t, c_int};
 use ptr;
-use rand::RngUtil;
 use vec;
 
 #[cfg(test)] use rand;
+#[cfg(test)] use rand::RngUtil;
 
 pub mod rustrt {
     use libc::{c_int, c_void, size_t};

src/libcore/logging.rs

@@ -10,8 +10,6 @@
 
 //! Logging
 
-use libc;
-
 pub mod rustrt {
     use libc;
 
@@ -49,6 +47,7 @@ pub fn console_off() {
 pub fn log_type<T>(level: u32, object: &T) {
     use cast::transmute;
     use io;
+    use libc;
     use repr;
     use vec;
 

src/libcore/rt/io/mod.rs

@@ -8,9 +8,6 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-use option::*;
-use comm::{GenericPort, GenericChan};
-
 pub mod file;
 
 // FIXME #5370 Strongly want this to be StreamError(&mut Stream)

src/libcore/rt/uv/mod.rs

@@ -42,7 +42,6 @@ use ptr;
 use libc::{c_void, c_int, size_t, malloc, free, ssize_t};
 use cast::{transmute, transmute_mut_region};
 use ptr::null;
-use sys::size_of;
 use super::uvll;
 use super::uvll::*;
 use unstable::finally::Finally;

src/libcore/rt/uvll.rs

@@ -32,7 +32,6 @@
 use libc::{size_t, c_int, c_uint, c_void, c_char, uintptr_t};
 use libc::{malloc, free};
 use prelude::*;
-use ptr::to_unsafe_ptr;
 
 pub struct uv_err_t {
     code: c_int,

src/librustc/middle/trans/tvec.rs

@@ -28,7 +28,6 @@ use util::common::indenter;
 use util::ppaux::ty_to_str;
 
 use core::option::None;
-use core::uint;
 use core::vec;
 use syntax::ast;
 use syntax::codemap;

src/librustc/middle/typeck/astconv.rs

@@ -60,7 +60,6 @@ use middle::ty::{ty_param_substs_and_ty};
 use middle::ty;
 use middle::typeck::rscope::{in_binding_rscope};
 use middle::typeck::rscope::{region_scope, type_rscope, RegionError};
-use middle::typeck::{CrateCtxt};
 
 use core::result;
 use core::vec;

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

@@ -1328,7 +1328,7 @@ pub fn check_expr_with_unifier(fcx: @mut FnCtxt,
                   sugar: ast::CallSugar) {
         // Index expressions need to be handled separately, to inform them
         // that they appear in call position.
-        let mut bot = check_expr(fcx, f);
+        let mut _bot = check_expr(fcx, f);
         check_call_or_method(fcx,
                              sp,
                              call_expr_id,

src/libstd/json.rs

@@ -1202,7 +1202,6 @@ mod tests {
 
     use core::result;
     use core::hashmap::linear::LinearMap;
-    use core::cmp;
 
 
     fn mk_object(items: &[(~str, Json)]) -> Json {

src/libstd/sort.rs

@@ -725,8 +725,6 @@ fn copy_vec<T:Copy>(dest: &mut [T], s1: uint,
 
 #[cfg(test)]
 mod test_qsort3 {
-    use core::prelude::*;
-
     use sort::*;
 
     use core::vec;
@@ -770,8 +768,6 @@ mod test_qsort3 {
 
 #[cfg(test)]
 mod test_qsort {
-    use core::prelude::*;
-
     use sort::*;
 
     use core::int;

src/libsyntax/ext/tt/macro_parser.rs

@@ -19,11 +19,8 @@ use parse::parser::Parser;
 use parse::token::{Token, EOF, to_str, nonterminal};
 use parse::token;
 
-use core::option::{Option, Some, None};
-use core::str;
-use core::uint;
-use core::vec;
-use std::oldmap::HashMap;
+use core::hashmap::linear::LinearMap;
+use core::prelude::*;
 
 /* This is an Earley-like parser, without support for in-grammar nonterminals,
 only by calling out to the main rust parser for named nonterminals (which it

src/libsyntax/ext/tt/transcribe.rs

@@ -20,7 +20,6 @@ use parse::lexer::TokenAndSpan;
 
 use core::option;
 use core::vec;
-use std;
 
 /* FIXME #2811: figure out how to have a uniquely linked stack, and change to
    `~` */