Stop looking for legacy cache file names

Related: #485

Author: embeddedt

common/src/main/java/org/embeddedt/modernfix/structure/CachingStructureManager.java

@@ -70,8 +70,6 @@ public static CompoundTag readStructureTag(ResourceLocation location, DataFixer
             hasher.reset();
             String hash = encodeHex(hasher.digest(structureBytes));
             CompoundTag cachedUpgraded = getCachedUpgraded(location, truncateHash(hash));
-            if(cachedUpgraded == null)
-                cachedUpgraded = getCachedUpgraded(location, hash); /* pick up old cache */
             if(cachedUpgraded != null && cachedUpgraded.getInt("DataVersion") == requiredMinimumDataVersion) {
                 ModernFix.LOGGER.debug("Using cached upgraded version of {}", location);
                 currentTag = cachedUpgraded;