since nvidia-probe always outputs valid json now, remove unncessary conditionals

roles/slurm-common/tasks/main.yml

@@ -88,11 +88,8 @@
   script: scripts/nvidia-probe.py
   register: probeOutput
 
-- set_fact: slurm_gres_list= "[ ]"
-
 - name: "set nvidiaprobe slurm_gres_list"
-  set_fact: "slurm_gres_list={{  probeOutput.stdout | from_json }}"
-  when: probeOutput.stdout is defined and ( probeOutput.stdout|length !=0 )
+  set_fact: "slurm_gres_list={{  probeOutput.stdout }}"
 
 - name: template gres.conf file
   template: src="gres.conf.j2" dest={{ slurm_dir }}/etc/gres/gres.conf mode=644