Remove top-level v1/v2 after moving to legacy/

v2/benchmark_profilegen/benchmark_metadata.json

@@ -1,21 +0,0 @@
-{
-  "version": "profilegen_v2_wallet_once_gpt54_pluscurmkt",
-  "description": "ProfileGen built from DirectGen v2: one wallet profile per wallet (gpt-5.4) + current market history in prompt.",
-  "source_directgen": "v2_outputs/directgen_v2_fixcost_marketblocks_top5_v4_unified_actions_ratio85105_prior1",
-  "files": {
-    "test": "v2/benchmark_profilegen/test.jsonl.gz",
-    "validation": "v2/benchmark_profilegen/validation.jsonl.gz",
-    "profiles_test": "v2/benchmark_profilegen/profiles_test.jsonl",
-    "profiles_validation": "v2/benchmark_profilegen/profiles_validation.jsonl"
-  },
-  "rows": {
-    "test": 59559,
-    "validation": 114471
-  },
-  "profile_generator_model": "gpt-5.4",
-  "prompt_components": [
-    "WalletProfile",
-    "CurrentMarketHistory",
-    "Current decision context"
-  ]
-}