Remove libuv, gyp

This commit removes the libuv and gyp submodules, as well as all build
infrastructure related to them.

For more context, see the [runtime removal
RFC](https://github.com/rust-lang/rfcs/pull/230)

[breaking-change]

1 files changed, 0 insertions, 35 deletions

diff --git a/COPYRIGHT b/COPYRIGHT
index 247bd7f9967..27bb172fa85 100644
--- a/COPYRIGHT
+++ b/COPYRIGHT
@@ -213,41 +213,6 @@ their own copyright notices and license terms:
   as the Rust compiler or runtime libraries themselves).
 
 
-* The libuv asynchronous I/O library. Code for this package
-  is found in the src/libuv directory, within this
-  distribution. This package is redistributed under the
-  following terms, as noted in its source:
-
-    Copyright Joyent, Inc. and other Node contributors. All
-    rights reserved.  Permission is hereby granted, free of
-    charge, to any person obtaining a copy of this software
-    and associated documentation files (the "Software"), to
-    deal in the Software without restriction, including
-    without limitation the rights to use, copy, modify,
-    merge, publish, distribute, sublicense, and/or sell
-    copies of the Software, and to permit persons to whom
-    the Software is furnished to do so, subject to the
-    following conditions:
-
-    The above copyright notice and this permission notice
-    shall be included in all copies or substantial portions
-    of the Software.
-
-    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
-    ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
-    TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
-    PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
-    SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
-    CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-    OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
-    IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
-    DEALINGS IN THE SOFTWARE.
-
-
-* Additional libraries included in libuv carry separate
-  BSD-compatible licenses. See src/libuv/LICENSE for
-  details.
-
 * The src/rt/miniz.c file, carrying an implementation of
   RFC1950/RFC1951 DEFLATE, by Rich Geldreich
   <richgel99@gmail.com>. All uses of this file are