Fixed ULib naming issues

I was honestly just tired of seeing 3x the ULib results
on JSON and PLAINTEXT

frameworks/C++/ULib/benchmark_config

@@ -4,10 +4,6 @@
     "default": {
       "setup_file": "setup_mysql",
       "json_url": "/json",
-      "db_url": "/db",
-      "query_url": "/query?queries=",
-      "fortune_url": "/fortune",
-      "update_url": "/update?queries=",
       "plaintext_url": "/plaintext",
       "port": 8080,
       "approach": "Realistic",
@@ -20,18 +16,16 @@
       "webserver": "userver_tcp",
       "os": "Linux",
       "database_os": "Linux",
-      "display_name": "ULib-mysql",
+      "display_name": "ULib",
       "notes": "",
       "versus": ""
     },
     "mysql": {
       "setup_file": "setup_mysql",
-      "json_url": "/json",
       "db_url": "/db",
       "query_url": "/query?queries=",
       "fortune_url": "/fortune",
       "update_url": "/update?queries=",
-      "plaintext_url": "/plaintext",
       "port": 8080,
       "approach": "Realistic",
       "classification": "Platform",
@@ -49,11 +43,9 @@
     },
     "sqlite": {
       "setup_file": "setup_sqlite",
-      "json_url": "/json",
       "db_url": "/db",
       "query_url": "/query?queries=",
       "fortune_url": "/fortune",
-      "plaintext_url": "/plaintext",
       "port": 8080,
       "approach": "Realistic",
       "classification": "Platform",
@@ -71,12 +63,10 @@
     },
     "postgres": {
       "setup_file": "setup_postgres",
-      "json_url": "/json",
       "db_url": "/db",
       "query_url": "/query?queries=",
       "fortune_url": "/fortune",
       "update_url": "/update?queries=",
-      "plaintext_url": "/plaintext",
       "port": 8080,
       "approach": "Realistic",
       "classification": "Platform",