Update config_defaults.yaml

Author: RatkoVasic-NOAA

ush/config_defaults.yaml

@@ -1577,7 +1577,6 @@ task_run_fcst:
       batchargs:
         nodes: !int '{{ (task_run_fcst.PE_MEMBER01 + task_run_fcst.fv3.execution.batchargs.tasks_per_node - 1) // task_run_fcst.fv3.execution.batchargs.tasks_per_node }}'
         tasks_per_node: !int '{{ platform.NCORES_PER_NODE // task_run_fcst.fv3.execution.threads }}'
-        exclusive: True
         walltime: 04:30:00
       threads: !int '{{ task_run_fcst.envvars.OMP_NUM_THREADS_RUN_FCST }}'
   #------------------------------------------------------------------------