Remove *_version properties of ServiceWorkerRegistration and workerRegistrationDeleted event.

Source/devtools/protocol.json

 {
     "version": { "major": "1", "minor": "1" },
     "domains": [{
         "domain": "Inspector",
         "hidden": true,
         "types": [],
         "commands": [
             {
                 "name": "enable",
                 "description": "Enables inspector domain notifications."
@@ skipping 4022 matching lines @@
         "domain": "ServiceWorker",
         "hidden": true,
         "types": [
             {
                 "id": "ServiceWorkerRegistration",
                 "type": "object",
                 "description": "ServiceWorker registration.",
                 "properties": [
                     { "name": "registrationId", "type": "string" },
                     { "name": "scopeURL", "type": "string" },
-                    { "name": "isDeleted", "type": "boolean", "optional": true },
-                    { "name": "activeVersion", "optional": true, "$ref": "ServiceWorkerVersion" },
-                    { "name": "waitingVersion", "optional": true, "$ref": "ServiceWorkerVersion" },
-                    { "name": "installingVersion", "optional": true, "$ref": "ServiceWorkerVersion" }
+                    { "name": "isDeleted", "type": "boolean", "optional": true }
                 ]
             },
             {
                 "id": "ServiceWorkerVersion",
                 "type": "object",
                 "description": "ServiceWorker version.",
                 "properties": [
                     { "name": "versionId", "type": "string" },
                     { "name": "registrationId", "type": "string" },
                     { "name": "scriptURL", "type": "string" },
@@ skipping 57 matching lines @@
                     { "name": "registrations", "type": "array", "items": { "$ref": "ServiceWorkerRegistration" } }
                 ],
                 "handlers": ["browser"]
             },
             {
                 "name": "workerVersionUpdated",
                 "parameters": [
                     { "name": "versions", "type": "array", "items": { "$ref": "ServiceWorkerVersion" } }
                 ],
                 "handlers": ["browser"]
-            },
-            {
-                "name": "workerRegistrationDeleted",
-                "parameters": [
-                    { "name": "registrationId", "type": "string" }
-                ],
-                "handlers": ["browser"]
             }
         ]
     },
     {
         "domain": "Canvas",
         "hidden": true,
         "types": [
             {
                 "id": "ResourceId",
                 "type": "string",
@@ skipping 765 matching lines @@
                 ],
                 "returns": [
                     { "name": "accessibilityNode", "$ref": "AXNode", "description": "The <code>Accessibility.AXNode</code> for this DOM node, if it exists.", "optional": true }
                 ],
                 "description": "Fetches the accessibility node for this DOM node, if it exists.",
                 "hidden": true
             }
         ]
     }]
 }