coll/cuda: always compile component

the coll/cuda component has been converted to use the accelerator
framework. Hence, we can always compile it, no need for the configure
logic.
Furthemore, the component will now disqualify itself if the accelerator
component selected is the 'null' component.

Signed-off-by: Edgar Gabriel <Edgar.Gabriel@amd.com>

Author: edgargabriel

ompi/mca/coll/cuda/coll_cuda_module.c

@@ -5,6 +5,7 @@
  * Copyright (c) 2014      NVIDIA Corporation.  All rights reserved.
  * Copyright (c) 2019      Research Organization for Information Science
  *                         and Technology (RIST).  All rights reserved.
+ * Copyright (c) 2023      Advanced Micro Devices, Inc. All rights reserved.
  * $COPYRIGHT$
  *
  * Additional copyrights may follow
@@ -81,6 +82,13 @@ mca_coll_cuda_comm_query(struct ompi_communicator_t *comm,
 {
     mca_coll_cuda_module_t *cuda_module;
 
+    if (0 == strcmp(opal_accelerator_base_selected_component.base_version.mca_component_name,
+                    "null")) {
+        opal_output_verbose(10, ompi_coll_base_framework.framework_output,
+                          "coll:cuda:comm_query: accelerator component is null: disqualifying myself");
+        return NULL;
+    }
+
     cuda_module = OBJ_NEW(mca_coll_cuda_module_t);
     if (NULL == cuda_module) {
         return NULL;