Removing cuda dependency on libdevice .o files

Author: Hugh Delaney

libdevice/cmake/modules/SYCLLibdevice.cmake

@@ -36,11 +36,8 @@ if ("NVPTX" IN_LIST LLVM_TARGETS_TO_BUILD)
   string(APPEND sycl_targets_opt ",nvptx64-nvidia-cuda")
   list(APPEND compile_opts
     "-fno-sycl-libspirv"
-    "-fno-bundle-offload-arch")
-  if(CUDA_TOOLKIT_ROOT_DIR)
-    list(APPEND compile_opts
-      "--cuda-path=${CUDA_TOOLKIT_ROOT_DIR}")
-  endif()
+    "-fno-bundle-offload-arch"
+    "-nocudalib")
 endif()
 
 if (WIN32)