Revert v1.17 release changes on v1.16 branch (#18123)

This reverts commits:
  1131f8603e.
  cf5b8b200c.
  75de70a431.
  dff2f7b960.
  cf925bb688.
  ffd1363c0e.
  87a2cafb20.
  ffe259d6f2.

content/en/docs/concepts/services-networking/dual-stack.md

@@ -51,7 +51,6 @@ To enable IPv4/IPv6 dual-stack, enable the `IPv6DualStack` [feature gate](/docs/
       * `--feature-gates="IPv6DualStack=true"`
       * `--cluster-cidr=<IPv4 CIDR>,<IPv6 CIDR>` eg. `--cluster-cidr=10.244.0.0/16,fc00::/24`
       * `--service-cluster-ip-range=<IPv4 CIDR>,<IPv6 CIDR>`
-      * `--node-cidr-mask-size-ipv4|--node-cidr-mask-size-ipv6` defaults to /24 for IPv4 and /64 for IPv6
    * kubelet:
       * `--feature-gates="IPv6DualStack=true"`
    * kube-proxy:
@@ -99,7 +98,9 @@ The use of publicly routable and non-publicly routable IPv6 address blocks is ac
 
 ## Known Issues
 
+   * IPv6 network block assignment uses the default IPv4 CIDR block size (/24)
    * Kubenet forces IPv4,IPv6 positional reporting of IPs (--cluster-cidr)
+   * Dual-stack networking does not function if the `EndpointSlice` feature gate is enabled.
 
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