FIX: clean up aarch64 admin testing env

env/sles15/aarch64/admin/testing/spack.yaml

@@ -1,8 +1,9 @@
 spack:
   concretizer:
     unify: false
-    targets:
+    #E.G: to be uncommented if using nvhpc
-      granularity: microarchitectures
+    # targets:
+    #   granularity: microarchitectures
     reuse:
       from:
       - type: local
@@ -30,7 +31,7 @@ spack:
         cray-mpich:
           environment:
             set:
-              SLURM_MPI_TYPE: pmix
+              SLURM_MPI_TYPE: cray_shasta
         openmpi:
           environment:
             set:
@@ -40,15 +41,5 @@ spack:
             set:
               SLURM_MPI_TYPE: pmix
               FI_HMEM_CUDA_USE_DMABUF: '1'
-  packages:
+  specs: []
-    libfuse:
-      externals:
-        - spec: libfuse@2.9.7
-          prefix: /usr
-    'nvhpc:':
-      buildable: true
-    'cce:':
-      buildable: true
-  specs:
-   - osu-micro-benchmarks +cuda cuda_arch=90 %gcc@14.2.0 ^openmpi@main +cuda cuda_arch=90 ^libfabric@main+cuda fabrics=lnx,cxi,rxm,tcp,shm ^libcxi+cuda ^cuda@12.8.0
   view: false