Remove deprecated `collections` crate.

This reverts commit 6484258f1749499d3e51685df867b3d460a7f0be.

2 files changed, 0 insertions, 80 deletions

diff --git a/src/libcollections/Cargo.toml b/src/libcollections/Cargo.toml
deleted file mode 100644
index 800e36161d2..00000000000
--- a/src/libcollections/Cargo.toml
+++ /dev/null
@@ -1,12 +0,0 @@
-[package]
-authors = ["The Rust Project Developers"]
-name = "collections"
-version = "0.0.0"
-
-[lib]
-name = "collections"
-path = "lib.rs"
-
-[dependencies]
-alloc = { path = "../liballoc" }
-core = { path = "../libcore" }
diff --git a/src/libcollections/lib.rs b/src/libcollections/lib.rs
deleted file mode 100644
index 55316db3d5a..00000000000
--- a/src/libcollections/lib.rs
+++ /dev/null
@@ -1,68 +0,0 @@
-// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#![allow(unused_attributes)]
-#![unstable(feature = "collections",
-            reason = "this library is unlikely to be stabilized in its current \
-                      form or name",
-            issue = "27783")]
-#![rustc_deprecated(since = "1.20.0",
-                    reason = "collections moved to `alloc`")]
-#![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png",
-       html_favicon_url = "https://doc.rust-lang.org/favicon.ico",
-       html_root_url = "https://doc.rust-lang.org/nightly/",
-       issue_tracker_base_url = "https://github.com/rust-lang/rust/issues/",
-       test(no_crate_inject, attr(allow(unused_variables), deny(warnings))))]
-#![no_std]
-#![deny(warnings)]
-
-#![feature(alloc)]
-#![feature(collections_range)]
-#![feature(macro_reexport)]
-#![feature(staged_api)]
-
-//! Collection types
-//!
-//! See [`std::collections`](../std/collections/index.html) for a detailed
-//! discussion of collections in Rust.
-
-#[macro_reexport(vec, format)]
-extern crate alloc;
-
-pub use alloc::Bound;
-
-pub use alloc::binary_heap;
-pub use alloc::borrow;
-pub use alloc::fmt;
-pub use alloc::linked_list;
-pub use alloc::range;
-pub use alloc::slice;
-pub use alloc::str;
-pub use alloc::string;
-pub use alloc::vec;
-pub use alloc::vec_deque;
-
-pub use alloc::btree_map;
-pub use alloc::btree_set;
-
-#[doc(no_inline)]
-pub use alloc::binary_heap::BinaryHeap;
-#[doc(no_inline)]
-pub use alloc::btree_map::BTreeMap;
-#[doc(no_inline)]
-pub use alloc::btree_set::BTreeSet;
-#[doc(no_inline)]
-pub use alloc::linked_list::LinkedList;
-#[doc(no_inline)]
-pub use alloc::vec_deque::VecDeque;
-#[doc(no_inline)]
-pub use alloc::string::String;
-#[doc(no_inline)]
-pub use alloc::vec::Vec;