src/main/java/net/fabricmc/loom/configuration/providers/mappings/mojmap/MojangMappingLayer.java

@@ -60,8 +60,6 @@ public record MojangMappingLayer(MinecraftVersionMeta.Download clientDownload,
 
 		printMappingsLicense(clientMappings);
 
-		mappingVisitor = new MojangPackageFixingMappingVisitor(mappingVisitor);
-
 		// Filter out field names matching the pattern
 		DstNameFilterMappingVisitor nameFilter = new DstNameFilterMappingVisitor(mappingVisitor, SYNTHETIC_NAME_PATTERN);
 

src/main/java/net/fabricmc/loom/configuration/providers/mappings/mojmap/MojangPackageFixingMappingVisitor.java

@@ -1,30 +0,0 @@
-package net.fabricmc.loom.configuration.providers.mappings.mojmap;
-
-import net.fabricmc.mappingio.MappedElementKind;
-import net.fabricmc.mappingio.MappingVisitor;
-import net.fabricmc.mappingio.adapter.ForwardingMappingVisitor;
-
-import java.io.IOException;
-
-/*
- * This is temporary, since currently using the Quilt mappings layered on top of mojmap
- * crashes the game due to a conflict in mapped packages for anonymous inner classes.
- * 
- * The problematic Mojang packages are replaced with their Quilt counterparts and the
- * remapped game then properly works.
- */
-public class MojangPackageFixingMappingVisitor extends ForwardingMappingVisitor {
-	public MojangPackageFixingMappingVisitor(MappingVisitor next) {
-		super(next);
-	}
-
-	@Override
-	public void visitDstName(MappedElementKind targetKind, int namespace, String name) throws IOException {
-		if (targetKind == MappedElementKind.CLASS)
-			name = name
-					.replace("com/mojang/realmsclient/", "net/minecraft/client/realms/")
-					.replace("com/mojang/math/", "net/minecraft/util/math/");
-
-		super.visitDstName(targetKind, namespace, name);
-	}
-}