avalanche: revert fuji profile to leveldb (remove firewood, restore leveldb)

The previous commit (b578bd85) incorrectly renamed fuji from leveldb to firewood.
On-disk verification on rpc-de-10 (64k *.ldb files, --db-type=leveldb flag,
startup log databaseConfig.name=leveldb) proves the avalanche-fuji node uses
LEVELDB. This commit restores the leveldb profiles and removes the firewood
variants for fuji.

- Restored: avalanche-fuji-go-pruned-leveldb.yml, .prune.yml, archive-leveldb.yml
- Removed: avalanche-fuji-go-pruned-firewood.yml, .prune.yml
- Updated: compose_registry.json

Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>

compose_registry.json

@@ -1123,30 +1123,13 @@
       "avalanche-fuji-go-archive-leveldb"
     ]
   },
-  {
-    "chain": "fuji",
-    "client": "go",
-    "compose_file": "avalanche/go/avalanche-fuji-go-pruned-firewood",
-    "drpc_chain": "avalanche-fuji",
-    "features": [
-      "firewood"
-    ],
-    "network": "avalanche",
-    "node": null,
-    "relay": null,
-    "stack": null,
-    "type": "pruned",
-    "volumes": [
-      "avalanche-fuji-go-pruned-firewood"
-    ]
-  },
   {
     "chain": "fuji",
     "client": "go",
     "compose_file": "avalanche/go/avalanche-fuji-go-pruned-leveldb",
     "drpc_chain": "avalanche-fuji",
     "features": [
-      "firewood"
+      "leveldb"
     ],
     "network": "avalanche",
     "node": null,
@@ -1157,23 +1140,6 @@
       "avalanche-fuji-go-pruned-leveldb"
     ]
   },
-  {
-    "chain": "fuji",
-    "client": "go",
-    "compose_file": "avalanche/go/avalanche-fuji-go-pruned-pebbledb",
-    "drpc_chain": "avalanche-fuji",
-    "features": [
-      "firewood"
-    ],
-    "network": "avalanche",
-    "node": null,
-    "relay": null,
-    "stack": null,
-    "type": "pruned",
-    "volumes": [
-      "avalanche-fuji-go-pruned-pebbledb"
-    ]
-  },
   {
     "chain": "mainnet",
     "client": "go",