Update azd-hooks/predeploy.ps1

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: pauldotyu

azd-hooks/predeploy.ps1

@@ -35,7 +35,6 @@ managedIdentityClientId: $($env:AZURE_IDENTITY_CLIENT_ID)
 # Add base images
 ###########################################################
 @"
-namespace: ${env:AZURE_AKS_NAMESPACE}
 productService:
   image:
     repository: ${env:SOURCE_REGISTRY}/aks-store-demo/product-service