remove Rewriter module (#1271)

Author: gcanti

packages/effect/SCHEMA.md

@@ -4732,75 +4732,6 @@ console.log(JSON.stringify(document, null, 2))
 */
 ```
 
-#### Rewriters
-
-Sometimes you need to adapt a schema to a different target format. For example, you might convert a JSON Schema to the subset supported by OpenAI (https://platform.openai.com/docs/guides/structured-outputs/supported-schemas?type-restrictions=string-restrictions#supported-schemas).
-
-Note: the more context that an LLM has, the more "correct" the structured output will be, so it's advised to pass the `generateDescriptions: true` option to `toJsonSchemaDocument` APIs.
-
-**Example** (Convert to an OpenAI-compatible schema)
-
-```ts
-import { Schema } from "effect"
-import { Rewriter } from "effect/unstable/jsonschema"
-
-// Define a schema with an optional non-empty string field 'a'
-const schema = Schema.Struct({
-  a: Schema.optionalKey(Schema.NonEmptyString)
-})
-
-const document = Schema.toJsonSchemaDocument(schema, {
-  generateDescriptions: true
-})
-
-console.log(JSON.stringify(document.schema, null, 2))
-/*
-Output (before rewrite):
-{
-  "type": "object",
-  "properties": {
-    "a": {
-      "type": "string",
-      "allOf": [
-        {
-          "minLength": 1,
-          "description": "a value with a length of at least 1"
-        }
-      ]
-    }
-  },
-  "additionalProperties": false
-}
-*/
-
-// Rewrite to the OpenAI subset:
-// - Make all fields required
-// - Represent optionality by unioning with null (T | null)
-// - Drop unsupported keywords like minLength
-const rewritten = Rewriter.openAi(document)
-
-console.log(JSON.stringify(rewritten.schema, null, 2))
-/*
-Output:
-{
-  "type": "object",
-  "properties": {
-    "a": {
-      "type": [
-        "string",
-        "null"
-      ],
-      "description": "a value with a length of at least 1"
-    }
-  },
-  "additionalProperties": false,
-  "required": [
-    "a"
-  ]
-}
-*/
-```
-
 ### Generating an Arbitrary from a Schema
 
 Property-based testing checks your code against many randomly generated inputs. An Arbitrary is a generator that produces random values matching your schema. Schema can derive an Arbitrary automatically, so you do not need to write generators by hand.

packages/effect/package.json

@@ -38,7 +38,6 @@
     "./unstable/eventlog": "./src/unstable/eventlog/index.ts",
     "./unstable/http": "./src/unstable/http/index.ts",
     "./unstable/httpapi": "./src/unstable/httpapi/index.ts",
-    "./unstable/jsonschema": "./src/unstable/jsonschema/index.ts",
     "./unstable/observability": "./src/unstable/observability/index.ts",
     "./unstable/persistence": "./src/unstable/persistence/index.ts",
     "./unstable/process": "./src/unstable/process/index.ts",