libc++: remove unused variable in random_device::operator()()
libc++: remove unused variable in random_device::operator()()

Reviewers: jvoung

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D7416

git-svn-id: 756ef344af921d95d562d9e9f9389127a89a6314@228183 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/libcxx,llvm-mirror/libcxx,llvm-mirror/libcxx,llvm-mirror/libcxx,llvm-mirror/libcxx