Remove deprecated World Images section from README

The World Images feature was removed. The relevant documentation and example have been removed to avoid confusion and potential misuse. This aligns with the goal of utilizing `level.dat` information more reliably.

README.md

@@ -86,54 +86,6 @@ _the aliases can be used by adding a single dash (-) in front of the alias (exam
 
 _The general spawn position will be overridden and only the world will be used_
 
-## World Images
-
-> [!WARNING]
-> In the near future World Images will be replaced or even removed
-> In their current state they are not very safe or consistent in their behaviour
-> The goal is to use as much information provided in the `level.dat` file
-
-A world image file has the extension `.image` and contains a json object with the following entries
-
-| Key         | Values                                        | Description                                                      | Optional |
-|-------------|-----------------------------------------------|------------------------------------------------------------------|----------|
-| name        | String                                        | the name of the world                                            | No       |
-| key         | NamespacedKey                                 | the namespaced key of the world                                  | No       |
-| settings    | World Preset                                  | the world settings<br/>_(only applies to world type flat)_       | Yes      |
-| generator   | World Generator                               | defines the world generator<br/>_(not combinable with settings)_ | Yes      |
-| deletion    | `WORLD`, `WORLD_AND_IMAGE`                    | what to delete on shutdown                                       | Yes      |
-| environment | `NORMAL`, `NETHER`, `THE_END`                 | the environment of the world                                     | No       |
-| type        | `NORMAL`, `FLAT`, `LARGE_BIOMES`, `AMPLIFIED` | the type of the world                                            | No       |
-| loadOnStart | boolean                                       | whether the world should be loaded on startup                    | Yes      |
-
-## World Generator
-
-A world generator consists out of two parts: The **plugin** and the **identifier**<br/>
-The plugin is the name of the plugin that provides a generator.<br/>
-In most cases the identifier will not be required, but in case a plugin provides multiple world generators,<br/>
-you have to define which one you have to use.
-
-### Example
-
-```json
-{
-  "name": "example",
-  "generator": {
-    "plugin": "example-plugin",
-    "identifier": "example-generator"
-  },
-  "key": "worlds:example",
-  "settings": {
-    "biome": "minecraft:the_void",
-    "layers": []
-  },
-  "deletion": "WORLD",
-  "environment": "NORMAL",
-  "type": "FLAT",
-  "loadOnStart": true
-}
-```
-
 ## World Presets
 
 ## API