diff --git a/unpick-definitions/biome_ids.unpick b/unpick-definitions/biome_ids.unpick
deleted file mode 100644
index bc95bef3f5..0000000000
--- a/unpick-definitions/biome_ids.unpick
+++ /dev/null
@@ -1,115 +0,0 @@
-v2
-
-constant biome_ids net/minecraft/world/biome/BiomeIds BIRCH_FOREST
-constant biome_ids net/minecraft/world/biome/BiomeIds BIRCH_FOREST_HILLS
-constant biome_ids net/minecraft/world/biome/BiomeIds DARK_FOREST
-constant biome_ids net/minecraft/world/biome/BiomeIds SNOWY_TAIGA
-constant biome_ids net/minecraft/world/biome/BiomeIds SNOWY_TAIGA_HILLS
-constant biome_ids net/minecraft/world/biome/BiomeIds GIANT_TREE_TAIGA
-constant biome_ids net/minecraft/world/biome/BiomeIds GIANT_TREE_TAIGA_HILLS
-constant biome_ids net/minecraft/world/biome/BiomeIds WOODED_MOUNTAINS
-constant biome_ids net/minecraft/world/biome/BiomeIds SAVANNA
-constant biome_ids net/minecraft/world/biome/BiomeIds SAVANNA_PLATEAU
-constant biome_ids net/minecraft/world/biome/BiomeIds BADLANDS
-constant biome_ids net/minecraft/world/biome/BiomeIds WOODED_BADLANDS_PLATEAU
-constant biome_ids net/minecraft/world/biome/BiomeIds BADLANDS_PLATEAU
-constant biome_ids net/minecraft/world/biome/BiomeIds WARM_OCEAN
-constant biome_ids net/minecraft/world/biome/BiomeIds LUKEWARM_OCEAN
-constant biome_ids net/minecraft/world/biome/BiomeIds COLD_OCEAN
-constant biome_ids net/minecraft/world/biome/BiomeIds DEEP_WARM_OCEAN
-constant biome_ids net/minecraft/world/biome/BiomeIds DEEP_LUKEWARM_OCEAN
-constant biome_ids net/minecraft/world/biome/BiomeIds DEEP_COLD_OCEAN
-constant biome_ids net/minecraft/world/biome/BiomeIds DEEP_FROZEN_OCEAN
-constant biome_ids net/minecraft/world/biome/BiomeIds SUNFLOWER_PLAINS
-constant biome_ids net/minecraft/world/biome/BiomeIds DESERT_LAKES
-constant biome_ids net/minecraft/world/biome/BiomeIds GRAVELLY_MOUNTAINS
-constant biome_ids net/minecraft/world/biome/BiomeIds FLOWER_FOREST
-constant biome_ids net/minecraft/world/biome/BiomeIds TAIGA_MOUNTAINS
-constant biome_ids net/minecraft/world/biome/BiomeIds SWAMP_HILLS
-constant biome_ids net/minecraft/world/biome/BiomeIds ICE_SPIKES
-constant biome_ids net/minecraft/world/biome/BiomeIds MODIFIED_JUNGLE
-constant biome_ids net/minecraft/world/biome/BiomeIds MODIFIED_JUNGLE_EDGE
-constant biome_ids net/minecraft/world/biome/BiomeIds TALL_BIRCH_FOREST
-constant biome_ids net/minecraft/world/biome/BiomeIds TALL_BIRCH_HILLS
-constant biome_ids net/minecraft/world/biome/BiomeIds DARK_FOREST_HILLS
-constant biome_ids net/minecraft/world/biome/BiomeIds SNOWY_TAIGA_MOUNTAINS
-constant biome_ids net/minecraft/world/biome/BiomeIds GIANT_SPRUCE_TAIGA
-constant biome_ids net/minecraft/world/biome/BiomeIds GIANT_SPRUCE_TAIGA_HILLS
-constant biome_ids net/minecraft/world/biome/BiomeIds MODIFIED_GRAVELLY_MOUNTAINS
-constant biome_ids net/minecraft/world/biome/BiomeIds SHATTERED_SAVANNA
-constant biome_ids net/minecraft/world/biome/BiomeIds SHATTERED_SAVANNA_PLATEAU
-constant biome_ids net/minecraft/world/biome/BiomeIds ERODED_BADLANDS
-constant biome_ids net/minecraft/world/biome/BiomeIds MODIFIED_WOODED_BADLANDS_PLATEAU
-constant biome_ids net/minecraft/world/biome/BiomeIds MODIFIED_BADLANDS_PLATEAU
-constant biome_ids net/minecraft/world/biome/BiomeIds BAMBOO_JUNGLE
-constant biome_ids net/minecraft/world/biome/BiomeIds BAMBOO_JUNGLE_HILLS
-constant biome_ids net/minecraft/world/biome/BiomeIds OCEAN
-constant biome_ids net/minecraft/world/biome/BiomeIds PLAINS
-constant biome_ids net/minecraft/world/biome/BiomeIds DESERT
-constant biome_ids net/minecraft/world/biome/BiomeIds MOUNTAINS
-constant biome_ids net/minecraft/world/biome/BiomeIds FOREST
-constant biome_ids net/minecraft/world/biome/BiomeIds TAIGA
-constant biome_ids net/minecraft/world/biome/BiomeIds SWAMP
-constant biome_ids net/minecraft/world/biome/BiomeIds RIVER
-constant biome_ids net/minecraft/world/biome/BiomeIds FROZEN_OCEAN
-constant biome_ids net/minecraft/world/biome/BiomeIds FROZEN_RIVER
-constant biome_ids net/minecraft/world/biome/BiomeIds SNOWY_TUNDRA
-constant biome_ids net/minecraft/world/biome/BiomeIds SNOWY_MOUNTAINS
-constant biome_ids net/minecraft/world/biome/BiomeIds MUSHROOM_FIELDS
-constant biome_ids net/minecraft/world/biome/BiomeIds MUSHROOM_FIELD_SHORE
-constant biome_ids net/minecraft/world/biome/BiomeIds BEACH
-constant biome_ids net/minecraft/world/biome/BiomeIds DESERT_HILLS
-constant biome_ids net/minecraft/world/biome/BiomeIds WOODED_HILLS
-constant biome_ids net/minecraft/world/biome/BiomeIds TAIGA_HILLS
-constant biome_ids net/minecraft/world/biome/BiomeIds MOUNTAIN_EDGE
-constant biome_ids net/minecraft/world/biome/BiomeIds JUNGLE
-constant biome_ids net/minecraft/world/biome/BiomeIds JUNGLE_HILLS
-constant biome_ids net/minecraft/world/biome/BiomeIds JUNGLE_EDGE
-constant biome_ids net/minecraft/world/biome/BiomeIds DEEP_OCEAN
-constant biome_ids net/minecraft/world/biome/BiomeIds STONE_SHORE
-constant biome_ids net/minecraft/world/biome/BiomeIds SNOWY_BEACH
-
-# Registration
-target_method net/minecraft/world/biome/BuiltinBiomes register (ILnet/minecraft/util/registry/RegistryKey;Lnet/minecraft/world/biome/Biome;)Lnet/minecraft/world/biome/Biome;
-	param 0 biome_ids
-target_method net/minecraft/world/biome/BuiltinBiomes fromRawId (I)Lnet/minecraft/util/registry/RegistryKey;
-	param 0 biome_ids
-
-# Biome layers
-target_method net/minecraft/world/biome/layer/type/CrossSamplingLayer sample (Lnet/minecraft/world/biome/layer/util/LayerRandomnessSource;IIIII)I
-	param 1 biome_ids
-	param 2 biome_ids
-	param 3 biome_ids
-	param 4 biome_ids
-	param 5 biome_ids
-	return biome_ids
-target_method net/minecraft/world/biome/layer/type/DiagonalCrossSamplingLayer sample (Lnet/minecraft/world/biome/layer/util/LayerRandomnessSource;IIIII)I
-	param 1 biome_ids
-	param 2 biome_ids
-   	param 3 biome_ids
-   	param 4 biome_ids
-	param 5 biome_ids
-	return biome_ids
-target_method net/minecraft/world/biome/layer/type/IdentitySamplingLayer sample (Lnet/minecraft/world/biome/layer/util/LayerRandomnessSource;I)I
-	param 1 biome_ids
-	return biome_ids
-target_method net/minecraft/world/biome/layer/type/InitLayer sample (Lnet/minecraft/world/biome/layer/util/LayerRandomnessSource;II)I
-	return biome_ids
-target_method net/minecraft/world/biome/layer/type/MergingLayer sample (Lnet/minecraft/world/biome/layer/util/LayerRandomnessSource;Lnet/minecraft/world/biome/layer/util/LayerSampler;Lnet/minecraft/world/biome/layer/util/LayerSampler;II)I
-	return biome_ids
-target_method net/minecraft/world/biome/layer/type/ParentedLayer sample (Lnet/minecraft/world/biome/layer/util/LayerRandomnessSource;Lnet/minecraft/world/biome/layer/util/LayerSampler;II)I
-	return biome_ids
-target_method net/minecraft/world/biome/layer/type/SouthEastSamplingLayer sample (Lnet/minecraft/world/biome/layer/util/LayerRandomnessSource;I)I
-	param 1 biome_ids
-	return biome_ids
-target_method net/minecraft/world/biome/layer/util/LayerSampler sample (II)I
-	return biome_ids
-target_method net/minecraft/world/biome/layer/BiomeLayers areSimilar (II)Z
-	param 0 biome_ids
-	param 1 biome_ids
-target_method net/minecraft/world/biome/layer/BiomeLayers putCategory (Lit/unimi/dsi/fastutil/ints/Int2IntOpenHashMap;Lnet/minecraft/world/biome/layer/BiomeLayers$Category;I)V
-	param 2 biome_ids
-target_method net/minecraft/world/biome/layer/BiomeLayers isOcean (I)Z
-	param 0 biome_ids
-target_method net/minecraft/world/biome/layer/BiomeLayers isShallowOcean (I)Z
-	param 0 biome_ids