remove structure config api

[ImMorpheus]

SpongeAPI | Sponge

[Zidane]

@ImMorpheus

How is this handled now?

[ImMorpheus]

@Zidane With the current system (api-9) you add structures by creating a StructureGenerationConfig and adding it to the NoiseGenerationConfig.
The NoiseGenerationConfig is then used by the ChunkGenerator

SpongeAPI/src/main/java/org/spongepowered/api/world/generation/config/structure/StructureGenerationConfig.java

Lines 63 to 67 in 9a481d3

	Builder addStructure(Structure structure, SeparatedStructureConfig config);
	Builder addStructures(Map<Structure, SeparatedStructureConfig> structures);
	Builder removeStructure(Structure structure);

SpongeAPI/src/main/java/org/spongepowered/api/world/generation/config/NoiseGeneratorConfig.java

Line 185 in 9a481d3

Builder structureConfig(StructureGenerationConfig config);

SpongeAPI/src/main/java/org/spongepowered/api/world/generation/ChunkGenerator.java

Lines 37 to 51 in 9a481d3

	static <T extends FlatGeneratorConfig> ConfigurableChunkGenerator<T> flat(final T config) {
	return Sponge.game().factoryProvider().provide(ChunkGenerator.Factory.class).flat(Objects.requireNonNull(config, "config"));
	}
	static <T extends NoiseGeneratorConfig> ConfigurableChunkGenerator<T> noise(final BiomeProvider provider, final T config) {
	return Sponge.game().factoryProvider().provide(ChunkGenerator.Factory.class).noise(Objects.requireNonNull(provider, "provider"), Objects.requireNonNull(config, "config"));
	}
	static <T extends NoiseGeneratorConfig> ConfigurableChunkGenerator<T> noise(final BiomeProvider provider, final long seed, final T config) {
	return Sponge.game().factoryProvider().provide(ChunkGenerator.Factory.class).noise(Objects.requireNonNull(provider, "provider"), seed, Objects.requireNonNull(config, "config"));
	}
	static <T extends NoiseGeneratorConfig> ConfigurableChunkGenerator<T> noise(final BiomeProvider provider, final String seed, final T config) {
	return Sponge.game().factoryProvider().provide(ChunkGenerator.Factory.class).noise(Objects.requireNonNull(provider, "provider"), seed, Objects.requireNonNull(config, "config"));
	}

The ChunkGenerator can be used to generate a world (See WorldTemplate and WorldTest testplugin)

1.18.2 however nuked StructureSettings and decoupled NoiseGenerationConfig from structure generation, added a StructureSet class with a STRUCTURE_SET_REGISTRY and did a complete refactor of structure generation.
This PR removes the current api so that we can update to 1.18.2 and rework our current approach.