remove structure config api

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

@@ -28,7 +28,6 @@
 import org.spongepowered.api.world.biome.provider.BiomeProvider;
 import org.spongepowered.api.world.generation.config.FlatGeneratorConfig;
 import org.spongepowered.api.world.generation.config.NoiseGeneratorConfig;
-import org.spongepowered.api.world.generation.config.structure.StructureGenerationConfig;
 
 import java.util.Objects;
 
@@ -64,8 +63,6 @@ static ConfigurableChunkGenerator<NoiseGeneratorConfig> theEnd() {
 
     BiomeProvider biomeProvider();
 
-    StructureGenerationConfig structureConfig();
-
     interface Factory {
 
         <T extends FlatGeneratorConfig> ConfigurableChunkGenerator<T> flat(T config);

src/main/java/org/spongepowered/api/world/generation/ConfigurableChunkGenerator.java

@@ -25,14 +25,8 @@
 package org.spongepowered.api.world.generation;
 
 import org.spongepowered.api.world.generation.config.ChunkGeneratorConfig;
-import org.spongepowered.api.world.generation.config.structure.StructureGenerationConfig;
 
 public interface ConfigurableChunkGenerator<T extends ChunkGeneratorConfig> extends ChunkGenerator {
 
     T config();
-
-    @Override
-    default StructureGenerationConfig structureConfig() {
-        return this.config().structureConfig();
-    }
 }

src/main/java/org/spongepowered/api/world/generation/config/ChunkGeneratorConfig.java

@@ -24,18 +24,9 @@
  */
 package org.spongepowered.api.world.generation.config;
 
-import org.spongepowered.api.world.generation.config.structure.StructureGenerationConfig;
-
 /**
  * Base chunk generator configuration.
  * <p>See {@link NoiseGeneratorConfig} and {@link FlatGeneratorConfig}.</p>
  */
 public interface ChunkGeneratorConfig {
-
-    /**
-     * The structure generation settings.
-     *
-     * @return the structure generation settings.
-     */
-    StructureGenerationConfig structureConfig();
 }

src/main/java/org/spongepowered/api/world/generation/config/FlatGeneratorConfig.java

@@ -29,7 +29,6 @@
 import org.spongepowered.api.util.CopyableBuilder;
 import org.spongepowered.api.world.biome.Biome;
 import org.spongepowered.api.world.generation.config.flat.LayerConfig;
-import org.spongepowered.api.world.generation.config.structure.StructureGenerationConfig;
 
 import java.util.List;
 import java.util.Optional;
@@ -56,8 +55,6 @@ static Builder builder() {
 
     interface Builder extends org.spongepowered.api.util.Builder<FlatGeneratorConfig, Builder>, CopyableBuilder<FlatGeneratorConfig, Builder> {
 
-        Builder structureConfig(StructureGenerationConfig config);
-
         Builder addLayer(int index, LayerConfig config);
 
         Builder addLayer(LayerConfig config);

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

@@ -28,7 +28,6 @@
 import org.spongepowered.api.block.BlockState;
 import org.spongepowered.api.util.CopyableBuilder;
 import org.spongepowered.api.world.generation.config.noise.NoiseConfig;
-import org.spongepowered.api.world.generation.config.structure.StructureGenerationConfig;
 
 /**
  * ChunkGeneratorConfig used most of the vanilla provided dimensions.
@@ -182,8 +181,6 @@ static Builder builder() {
 
     interface Builder extends org.spongepowered.api.util.Builder<NoiseGeneratorConfig, Builder>, CopyableBuilder<NoiseGeneratorConfig, Builder> {
 
-        Builder structureConfig(StructureGenerationConfig config);
-
         Builder noiseConfig(NoiseConfig config);
 
         Builder surfaceRule(SurfaceRule rule);