manta-pacific: archive variant only (--full pruner backlog stalls the engine on the Caldera snapshot)

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KjqejYycVyVvrxV9aTDhgX

compose_registry.json

@@ -8285,23 +8285,6 @@
       "manta-pacific-mainnet-op-reth-archive-trace"
     ]
   },
-  {
-    "chain": "pacific-mainnet",
-    "client": "reth",
-    "compose_file": "op/reth/manta-pacific-mainnet-op-reth-pruned-trace",
-    "drpc_chain": "manta-pacific",
-    "features": [
-      "trace"
-    ],
-    "network": "manta",
-    "node": null,
-    "relay": null,
-    "stack": "op",
-    "type": "pruned",
-    "volumes": [
-      "manta-pacific-mainnet-op-reth-pruned-trace"
-    ]
-  },
   {
     "chain": "mainnet",
     "client": "reth",