Merge pull request mendersoftware#2543 from oldgiova/doc-fixes

docs: remove duplicated keys

Author: oldgiova

07.Server-installation/04.Production-installation-with-kubernetes/03.Mender-server/docs.md

@@ -112,8 +112,6 @@ For example, here's an Ingress for Azure AKS Provider:
 export MENDER_SERVER_DOMAIN="mender.example.com"
 
 cat <<-EOF > mender-values.yml
-ingress:
-  enabled: true
 ingress:
   enabled: true
   annotations:
@@ -141,8 +139,6 @@ For example, here's an Ingress for the Ingress-NGinx Provider:
 export MENDER_SERVER_DOMAIN="mender.example.com"
 
 cat <<-EOF > mender-values.yml
-ingress:
-  enabled: true
 ingress:
   enabled: true
   annotations: