Remove documentation of the retired Java product

Co-Authored-By: OpenAI Codex gpt-6.1-sol <[email protected]>

docs/README.md

@@ -48,4 +48,4 @@ To play, use [the launcher](../launcher/README.md); the project site is [playhor
 
 ## The earlier Java track (no longer developed)
 
-- [Retired Java performance packs](java-packs.md); [JFR analysis for Java comparisons](profiling.md).
+- [JFR analysis for Java comparisons](profiling.md).

docs/java-packs.md

@@ -1,15 +0,0 @@
-# Retired Java performance packs
-
-Before the Rust rewrite, Horizon shipped a Fabric optimization mod, performance pack profiles
-and a Prism Launcher Mac starter. That product is retired. Its patches, profiles, builders,
-starter, benchmark viewer and product-specific checks have been removed; use Git history
-for the former implementation. Horizon's Rust game does not use those Java patches.
-
-The Java parity oracles in `mods/horizon/src/test/java/dev/horizonlab/parity/` remain part of
-[the Rust parity workflow](parity-workflow.md). The Fabric and NeoForge benchmark source sets
-also remain: [comparison benchmarks](benchmark.md) still run real Java Minecraft against Rust.
-Their pinned third-party dependencies live in `tools/benchmark-deps/`; they do not include the
-retired Horizon optimization mod. [JFR analysis](profiling.md) remains available for Java comparisons.
-
-For the current game, see [build from source](../README.md#build-from-source).
-For server hosting, use [horizon-server](hosting.md).

docs/research/java-mod-compat.md

@@ -178,5 +178,4 @@ To be written as `docs/porting-from-fabric.md` once API 0.2 lands:
   networking.
 - Modrinth's most-downloaded Fabric mods, for the porting list.
 - Horizon's Fabric benchmark instrumentation (`mods/horizon/src/bench/`) remains
-  a developer tool for Java comparisons. The former Java optimization mod is
-  [retired](../java-packs.md); the parity oracles remain in `mods/horizon/src/test/`.
+  a developer tool for Java comparisons. The parity oracles live in `mods/horizon/src/test/`.

docs/rust-parity.md

@@ -54,7 +54,6 @@ across 1,441,816 state pairs, including all pinned suppression-rule families.
 Animation metadata, frame sequences and tick-state selection now have native
 differential coverage, including all bundled animated texture metadata. GPU
 interpolation and game-loop synchronization remain unfinished.
-The playable Java performance packs remain available during development.
 
 ## Completion criteria and playable builds
 

docs/server.md

@@ -7,8 +7,7 @@ should beat vanilla, Paper and Fabric + Lithium on TPS/MSPT, RAM, CPU, chunk gen
 Gameplay stays vanilla: there are no Paper-style rule changes unless the owner turns one on.
 
 This page covers what the server does today (measured), the design of `horizon-server`, and what ships for the
-first working version (2026-10-23). It replaced the Java/Fabric starter (`docs/server-quickstart.txt`,
-`tools/server.py`, retired on 2026-10-19). The owner's guide is docs/hosting.md, also at
+first working version (2026-10-23). The owner's guide is docs/hosting.md, also at
 https://playhorizon.dev/server.
 
 ## 1. Today

tools/benchmark-deps/README.md

@@ -5,6 +5,5 @@ and `tools/server_bench.py` (Fabric + Lithium). `tools/runtime.py` downloads and
 the pinned Fabric libraries. Game files still come from the user's own Minecraft install.
 
 `mods.lock.json` pins Sodium, Lithium, FerriteCore, ImmediatelyFast and Fabric API with
-publisher URLs and hashes. `fabric.lock.json` pins the loader and its libraries. These
-are developer benchmark inputs, not distributable Horizon packs. The former Horizon
-Java optimization mod and its pack profiles are retired; see `docs/java-packs.md`.
+publisher URLs and hashes. `fabric.lock.json` pins the loader and its libraries.
+These are developer benchmark inputs.