Revert "Update aosp/master libcxx rebase to r263688"

The world is burning.

This reverts commit c004fd909c, reversing
changes made to 1418e4163d.

test/libcxx/containers/sequences/deque/incomplete.pass.cpp

@@ -1,31 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-// <deque>
-
-// deque()
-// deque::iterator()
-
-#define _LIBCPP_ABI_INCOMPLETE_TYPES_IN_DEQUE
-#include <deque>
-#include <cassert>
-
-struct A {
-  std::deque<A> d;
-  std::deque<A>::iterator it;
-  std::deque<A>::reverse_iterator it2;
-};
-
-int main()
-{
-  A a;
-  assert(a.d.size() == 0);
-  a.it = a.d.begin();
-  a.it2 = a.d.rend();
-}