Revert [libcxx] r323453 - [cmake] [libcxx] Call llvm_setup_rpath() wh…

…en adding shared libraries.

Shoaib Meenai pointed out this will break standalone builds when built without llvm.

Differential Revision: https://reviews.llvm.org/D42459

llvm-svn: 323459

libcxx/lib/CMakeLists.txt

@@ -222,7 +222,6 @@ set(LIBCXX_TARGETS)
 # Build the shared library.
 if (LIBCXX_ENABLE_SHARED)
   add_library(cxx_shared SHARED $<TARGET_OBJECTS:cxx_objects>)
-  llvm_setup_rpath(cxx_shared)
   target_link_libraries(cxx_shared ${LIBCXX_LIBRARIES})
   set_target_properties(cxx_shared
     PROPERTIES