Reverting change in node_pool test

Author: marko7460

test/integration/node_pool/controls/kubectl.rb

@@ -78,12 +78,7 @@
               effect: "PreferNoSchedule",
               key: "all-pools-example",
               value: "true",
-            },
-            {
-              effect: "NoSchedule",
-              key: "nvidia.com/gpu",
-              value: "present",
-            },
+            }
           ])
         end
       end