Revert "Passing --protect-kernel-defaults kubelet flag to kubespray"

This reverts commit 83a2e7c8b782a64ef608310e4257ca82a2fbfcf9.

Change-Id: Ib1c99555edda4bee325cb66e2de1e6b0eac8870c
diff --git a/kubespray-installer/setup.sh b/kubespray-installer/setup.sh
index 843015a..51ad780 100755
--- a/kubespray-installer/setup.sh
+++ b/kubespray-installer/setup.sh
@@ -67,7 +67,7 @@
 
   # Install Kubespray
   echo "Installing Kubespray"
-  ansible-playbook -i "inventories/${DEPLOYMENT_NAME}/inventory.cfg" -e docker_version='17.03' -e kubelet_custom_flags="--protect-kernel-defaults"  kubespray/cluster.yml -b -v
+  ansible-playbook -i "inventories/${DEPLOYMENT_NAME}/inventory.cfg" -e docker_version='17.03' kubespray/cluster.yml -b -v
 }
 
 #