RFR: 8339169: Remove NaiveHuffman coder

[Aleksei Efimov]

`jdk.internal.net.http.hpack.NaiveHuffman` is an internal class and not used in `java.net.http` module or any test.  
It is proposed to remove this class.  
`HttpClient` will continue to use the `jdk.internal.net.http.hpack.QuickHuffman` to encode/decode string literals.

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Commit messages:
 - 8339169: Remove NaiveHuffman coder

Changes: https://git.openjdk.org/jdk/pull/20764/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20764&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8339169
  Stats: 691 lines in 1 file changed: 0 ins; 691 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/20764.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/20764/head:pull/20764

PR: https://git.openjdk.org/jdk/pull/20764