docs(loader): remove loader cache documentation

Author: intellild

website/docs/en/config/module-rules.mdx

@@ -754,7 +754,6 @@ type RuleSetLoaderWithOptions = {
   ident?: string;
   loader: string;
   options?: string | Record<string, any>;
-  cache?: boolean;
   parallel?: boolean | { maxWorkers?: number };
 };
 ```
@@ -839,61 +838,6 @@ export default {
 };
 ```
 
-## rules[].use.cache
-
-<ApiMeta stability={Stability.Experimental} />
-
-- **Type:** `boolean`
-- **Default:** `false`
-
-Enables caching for an individual loader. This option only takes effect when `experiments.newCache.loader` is enabled.
-
-Rspack invalidates a loader cache entry when any of the following changes:
-
-- the input content passed to the loader;
-- the loader options after JSON serialization;
-- the loader implementation identity. Rspack hashes the resolved entry file for JavaScript loaders and uses the declared cache version for native loaders;
-- the Rspack version.
-
-On a cache hit, Rspack restores the transformed content and source map without executing the loader again.
-
-```js title="rspack.config.mjs"
-export default {
-  experiments: {
-    newCache: {
-      loader: true,
-    },
-  },
-  module: {
-    rules: [
-      {
-        test: /\.js$/,
-        use: [
-          {
-            loader: './loaders/expensive-loader.js',
-            options: {
-              mode: 'transform',
-            },
-            cache: true,
-          },
-        ],
-      },
-    ],
-  },
-};
-```
-
-:::warning
-
-This experimental cache is intended for pure loaders whose observable result is limited to transformed content and an optional source map.
-
-- Dependencies added dynamically through the loader context are not included in cache validation and are not restored on a cache hit.
-- Transitive files imported by a JavaScript loader and its package metadata are not included in the loader implementation fingerprint.
-- Incoming source maps do not participate in cache validation. Only enable caching when the loader output does not depend on its input source map.
-- Results involving unsupported state such as `additionalData` or parse metadata are not cached. Loader side effects are not replayed on a cache hit.
-
-:::
-
 ## rules[].use.parallel
 
 <ApiMeta addedVersion="1.3.1" />

website/docs/zh/config/module-rules.mdx

@@ -753,7 +753,6 @@ type RuleSetLoaderWithOptions = {
   ident?: string;
   loader: string;
   options?: string | Record<string, any>;
-  cache?: boolean;
   parallel?: boolean | { maxWorkers?: number };
 };
 ```
@@ -837,61 +836,6 @@ export default {
 };
 ```
 
-## rules[].use.cache
-
-<ApiMeta stability={Stability.Experimental} />
-
-- **类型：** `boolean`
-- **默认值：** `false`
-
-为单个 loader 启用缓存。该选项仅在启用 `experiments.newCache.loader` 时生效。
-
-以下任一内容变化时，Rspack 会使对应的 loader 缓存失效：
-
-- 传给 loader 的输入内容；
-- JSON 序列化后的 loader options；
-- loader 实现标识。对于 JavaScript loader，Rspack 会计算解析后入口文件的哈希；对于 native loader，Rspack 使用其声明的缓存版本；
-- Rspack 版本。
-
-缓存命中时，Rspack 会直接恢复转换后的内容和 source map，不再执行 loader。
-
-```js title="rspack.config.mjs"
-export default {
-  experiments: {
-    newCache: {
-      loader: true,
-    },
-  },
-  module: {
-    rules: [
-      {
-        test: /\.js$/,
-        use: [
-          {
-            loader: './loaders/expensive-loader.js',
-            options: {
-              mode: 'transform',
-            },
-            cache: true,
-          },
-        ],
-      },
-    ],
-  },
-};
-```
-
-:::warning
-
-该实验性缓存适用于可观测结果仅包含转换后内容和可选 source map 的纯 loader。
-
-- 通过 loader context 动态添加的依赖不会参与缓存校验，缓存命中时也不会恢复这些依赖。
-- JavaScript loader 间接导入的文件及其包元数据不会参与 loader 实现指纹的计算。
-- 输入 source map 不参与缓存校验。仅当 loader 输出不依赖输入 source map 时才应启用缓存。
-- 涉及 `additionalData`、parse metadata 等暂不支持状态的结果不会被缓存。缓存命中时也不会重放 loader 的副作用。
-
-:::
-
 ## rules[].use.parallel
 
 <ApiMeta addedVersion="1.3.1" />