remove imports

src/liballoc/heap.rs

@@ -388,7 +388,6 @@ mod imp {
 mod test {
     extern crate test;
     use self::test::Bencher;
-    use core::ptr::PtrExt;
     use boxed::Box;
     use heap;
 

src/libstd/old_io/mem.rs

@@ -398,7 +398,7 @@ impl<'a> Buffer for BufReader<'a> {
 mod test {
     extern crate "test" as test_crate;
     use old_io::{SeekSet, SeekCur, SeekEnd, Reader, Writer, Seek};
-    use prelude::v1::{Ok, Err, range,  Vec, Buffer,  AsSlice, SliceExt};
+    use prelude::v1::{Ok, Err, range,  Vec, Buffer,  AsSlice};
     use prelude::v1::IteratorExt;
     use old_io;
     use iter::repeat;

src/libstd/old_io/mod.rs

@@ -1853,7 +1853,7 @@ impl fmt::Display for FilePermission {
 mod tests {
     use self::BadReaderBehavior::*;
     use super::{IoResult, Reader, MemReader, NoProgress, InvalidInput, Writer};
-    use prelude::v1::{Ok, Vec, Buffer, SliceExt};
+    use prelude::v1::{Ok, Vec, Buffer};
     use usize;
 
     #[derive(Clone, PartialEq, Debug)]

src/libstd/old_io/process.rs

@@ -761,7 +761,7 @@ mod tests {
     use old_io::{Truncate, Write, TimedOut, timer, process, FileNotFound};
     use prelude::v1::{Ok, Err, range, drop, Some, None, Vec};
     use prelude::v1::{Path, String, Reader, Writer, Clone};
-    use prelude::v1::{SliceExt, Str, AsSlice, ToString, GenericPath};
+    use prelude::v1::{Str, AsSlice, ToString, GenericPath};
     use old_io::fs::PathExtensions;
     use old_io::timer::*;
     use rt::running_on_valgrind;

src/libstd/old_path/posix.rs

@@ -453,7 +453,7 @@ mod tests {
     use iter::IteratorExt;
     use option::Option::{self, Some, None};
     use old_path::GenericPath;
-    use slice::{AsSlice, SliceExt};
+    use slice::AsSlice;
     use str::{self, Str};
     use string::ToString;
     use vec::Vec;

src/libstd/old_path/windows.rs

@@ -1133,7 +1133,7 @@ mod tests {
     use iter::IteratorExt;
     use option::Option::{self, Some, None};
     use old_path::GenericPath;
-    use slice::{AsSlice, SliceExt};
+    use slice::AsSlice;
     use str::Str;
     use string::ToString;
     use vec::Vec;

src/libstd/process.rs

@@ -533,7 +533,7 @@ mod tests {
     use io::prelude::*;
     use prelude::v1::{Ok, Err, drop, Some, Vec};
     use prelude::v1::{String, Clone};
-    use prelude::v1::{SliceExt, Str, AsSlice, ToString, GenericPath};
+    use prelude::v1::{Str, AsSlice, ToString, GenericPath};
     use old_path;
     use old_io::fs::PathExtensions;
     use rt::running_on_valgrind;

src/test/compile-fail/method-suggestion-no-duplication.rs

@@ -19,5 +19,4 @@ fn main() {
     //~^ ERROR does not implement any method
     //~^^ HELP #1: `core::slice::SliceExt`
     //~^^^ HELP #2: `core::str::StrExt`
-    //~^^^^ HELP #3: `collections::slice::SliceExt`
 }