Fix nvidia-inference-server version for v5.1

Author: arjunsuresh

script/app-mlperf-inference/meta.yaml

@@ -2105,7 +2105,7 @@ variations:
         tags: _custom,_v5.1-dev
       nvidia-inference-server:
         version: r5.0
-        tags: _mlcommons
+        tags: _custom
       nvidia-harness:   
         tags: _v5.0
       intel-harness:

script/build-mlperf-inference-server-nvidia/meta.yaml

@@ -161,12 +161,6 @@ variations:
       MLC_MLPERF_DEVICE: cuda
       MLC_MLPERF_DEVICE_LIB_NAMESPEC: cudart
 
-  ctuning:
-    group: code
-    default: true
-    add_deps_recursive:
-      nvidia-inference-common-code:
-        tags: _ctuning
   go:
     group: code
     add_deps_recursive: