CMake: remove support for llvm-config-generated dependencies in the build

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73979 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/cmake/modules/AddLLVM.cmake b/cmake/modules/AddLLVM.cmake
index 6dd1e47..b196c63 100755
--- a/cmake/modules/AddLLVM.cmake
+++ b/cmake/modules/AddLLVM.cmake
@@ -26,11 +26,7 @@
   if( LLVM_LINK_COMPONENTS )
     llvm_config(${name} ${LLVM_LINK_COMPONENTS})
   endif( LLVM_LINK_COMPONENTS )
-  if( USE_EXPLICIT_DEPENDENCIES )
-    target_link_libraries(${name} ${llvm_libs})
-  else( )
-    add_dependencies(${name} llvm-config.target)
-  endif( )
+  target_link_libraries(${name} ${llvm_libs})
   get_system_libs(llvm_system_libs)
   if( llvm_system_libs )
     target_link_libraries(${name} ${llvm_system_libs})