[libcxxabi][CMake] Drop unused HandleOutOfTreeLLVM include
This include doesn't seem to be needed for the standalone build (it's
not being used by libc++ build either), but introduces unnecessary
dependency because HandleOutOfTreeLLVM performs checks that require
a working C++ library. We shouldn't require a working C++ library to
build libc++abi or libc++ (it's what we're building after all).
Differential Revision: https://reviews.llvm.org/D58333
git-svn-id: https://llvm.org/svn/llvm-project/libcxxabi/trunk@354284 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed
