chore: cleanup imports

Author: PierreSchwang

worldedit-bukkit/adapters/adapter-1_21_9/src/main/java/com/sk89q/worldedit/bukkit/adapter/ext/fawe/v1_21_9/PaperweightAdapter.java

@@ -99,7 +99,6 @@
 import net.minecraft.server.level.ChunkResult;
 import net.minecraft.server.level.ServerChunkCache;
 import net.minecraft.server.level.ServerLevel;
-import net.minecraft.util.RandomSource;
 import net.minecraft.util.thread.BlockableEventLoop;
 import net.minecraft.world.Clearable;
 import net.minecraft.world.InteractionHand;

worldedit-bukkit/adapters/adapter-1_21_9/src/main/java/com/sk89q/worldedit/bukkit/adapter/impl/fawe/v1_21_9/PaperweightGetBlocks.java

@@ -23,7 +23,6 @@
 import com.sk89q.worldedit.util.SideEffect;
 import com.sk89q.worldedit.util.formatting.text.TextComponent;
 import com.sk89q.worldedit.world.biome.BiomeType;
-import com.sk89q.worldedit.world.biome.BiomeTypes;
 import com.sk89q.worldedit.world.block.BlockTypesCache;
 import io.papermc.lib.PaperLib;
 import io.papermc.paper.event.block.BeaconDeactivatedEvent;