DevTools: remove references to modules/indexeddb from core/inspector

Source/devtools/protocol.json

 {
     "version": { "major": "1", "minor": "1" },
     "domains": [{
         "domain": "Inspector",
         "hidden": true,
         "types": [],
         "commands": [
             {
                 "name": "enable",
                 "description": "Enables inspector domain notifications."
@@ skipping 1400 matching lines @@
                     { "name": "upper", "$ref": "Key", "optional": true, "description": "Upper bound." },
                     { "name": "lowerOpen", "type": "boolean", "description": "If true lower bound is open." },
                     { "name": "upperOpen", "type": "boolean", "description": "If true upper bound is open." }
                 ]
             },
             {
                 "id": "DataEntry",
                 "type": "object",
                 "description": "Data entry.",
                 "properties": [
-                    { "name": "key", "$ref": "Runtime.RemoteObject", "description": "Key." },
-                    { "name": "primaryKey", "$ref": "Runtime.RemoteObject", "description": "Primary key." },
-                    { "name": "value", "$ref": "Runtime.RemoteObject", "description": "Value." }
+                    { "name": "key", "type": "string", "description": "JSON-stringified key object." },
+                    { "name": "primaryKey", "type": "string", "description": "JSON-stringified primary key object." },
+                    { "name": "value", "type": "string", "description": "JSON-stringified value object." }
                 ]
             },
             {
                 "id": "KeyPath",
                 "type": "object",
                 "description": "Key path.",
                 "properties": [
                     { "name": "type", "type": "string", "enum": ["null", "string", "array"], "description": "Key path type." },
                     { "name": "string", "type": "string", "optional": true, "description": "String value." },
                     { "name": "array", "type": "array", "optional": true, "items": { "type": "string" }, "description": "Array value." }
@@ skipping 2630 matching lines @@
                 ],
                 "handlers": ["browser", "frontend"]
             },
             {
                 "name": "tracingComplete",
                 "handlers": ["browser", "frontend"]
             }
         ]
     }]
 }