Revert "[cmake] Fix clang builds with BUILD_SHARED=ON and CLANG_LINK_CLANG_DYLIB=ON"

This reverts commit df839cf.

This change used cmake's list filter operation which was not added
until cmake 3.6.

Author: tstellar

clang/tools/clang-shlib/CMakeLists.txt

@@ -14,17 +14,9 @@ foreach (lib ${clang_libs})
     list(APPEND _OBJECTS $<TARGET_OBJECTS:obj.${lib}>)
   endif()
   list(APPEND _DEPS $<TARGET_PROPERTY:${lib},INTERFACE_LINK_LIBRARIES>)
-  get_target_property(interface ${lib} LINK_LIBRARIES)
-  if (interface)
-    list(APPEND _DEPS ${interface})
-  endif()
+  list(APPEND _DEPS $<TARGET_PROPERTY:${lib},LINK_LIBRARIES>)
 endforeach ()
 
-# clang libraries are redundant since we are linking all the individual
-# object files into libclang-cpp.so, so filter them out from _DEPS.
-# This avoids problems with LLVM global data when building with
-# BUILD_SHARED_LIBS=ON
-list(FILTER _DEPS EXCLUDE REGEX "^clang")
 if (CLANG_LINK_CLANG_DYLIB)
   set(INSTALL_WITH_TOOLCHAIN INSTALL_WITH_TOOLCHAIN)
 endif()