metadata cleanup: reduce ulib json permutations

frameworks/C++/ulib/benchmark_config.json

@@ -19,7 +19,7 @@
       "notes": "",
       "versus": ""
     },
-    "json_normal": {
+    "json": {
       "setup_file": "setup_json",
       "json_url": "/json",
       "port": 8080,
@@ -37,60 +37,6 @@
       "notes": "",
       "versus": ""
     },
-    "json_medium": {
-      "setup_file": "setup_json_medium",
-      "json_url": "/json",
-      "port": 8080,
-      "approach": "Realistic",
-      "classification": "Platform",
-      "database": "None",
-      "framework": "ULib",
-      "language": "C++",
-      "orm": "Micro",
-      "platform": "None",
-      "webserver": "ULib",
-      "os": "Linux",
-      "database_os": "Linux",
-      "display_name": "ULib",
-      "notes": "",
-      "versus": ""
-    },
-    "json_large": {
-      "setup_file": "setup_json_large",
-      "json_url": "/json",
-      "port": 8080,
-      "approach": "Realistic",
-      "classification": "Platform",
-      "database": "None",
-      "framework": "ULib",
-      "language": "C++",
-      "orm": "Micro",
-      "platform": "None",
-      "webserver": "ULib",
-      "os": "Linux",
-      "database_os": "Linux",
-      "display_name": "ULib",
-      "notes": "",
-      "versus": ""
-    },
-    "json_extra": {
-      "setup_file": "setup_json_extra",
-      "json_url": "/json",
-      "port": 8080,
-      "approach": "Realistic",
-      "classification": "Platform",
-      "database": "None",
-      "framework": "ULib",
-      "language": "C++",
-      "orm": "Micro",
-      "platform": "None",
-      "webserver": "ULib",
-      "os": "Linux",
-      "database_os": "Linux",
-      "display_name": "ULib",
-      "notes": "",
-      "versus": ""
-    },
     "mysql": {
       "setup_file": "setup_mysql",
       "db_url": "/db",
@@ -133,26 +79,6 @@
       "notes": "",
       "versus": ""
     },
-    "sqlite": {
-      "setup_file": "setup_sqlite",
-      "db_url": "/db",
-      "query_url": "/query?queries=",
-      "fortune_url": "/fortune",
-      "port": 8080,
-      "approach": "Realistic",
-      "classification": "Platform",
-      "database": "SQLite",
-      "framework": "ULib",
-      "language": "C++",
-      "orm": "Micro",
-      "platform": "None",
-      "webserver": "ULib",
-      "os": "Linux",
-      "database_os": "Linux",
-      "display_name": "ULib-sqlite",
-      "notes": "",
-      "versus": ""
-    },
     "mongodb": {
       "setup_file": "setup_mongodb",
       "db_url": "/mdb",