DevTools: remove setLastEvaluationResult from the protocol.

Source/devtools/protocol.json

 {
     "version": { "major": "1", "minor": "1" },
     "domains": [{
         "domain": "Inspector",
         "hidden": true,
         "types": [],
         "commands": [
             {
                 "name": "enable",
                 "description": "Enables inspector domain notifications."
@@ skipping 1081 matching lines @@
                 ],
                 "description": "Enables console to refer to the node with given id via $x (see Command Line API for more details $x functions).",
                 "hidden": true
             },
             {
                 "name": "addInspectedHeapObject",
                 "parameters": [
                     { "name": "heapObjectId", "type": "integer" }
                 ],
                 "hidden": true
-            },
-            {
-                "name": "setLastEvaluationResult",
-                "parameters": [
-                    { "name": "objectId", "$ref": "Runtime.RemoteObjectId", "description": "Identifier of the object to set as last evaluation result." }
-                ],
-                "hidden": true,
-                "description": "Sets last evaluation result in console. Can be accessed via <code>$_</code> command line API."
             }
         ],
         "events": [
             {
                 "name": "messageAdded",
                 "parameters": [
                     { "name": "message", "$ref": "ConsoleMessage", "description": "Console message that has been added." }
                 ],
                 "description": "Issued when new console message is added."
             },
@@ skipping 3773 matching lines @@
                 ],
                 "returns": [
                     { "name": "accessibilityNode", "$ref": "AXNode", "description": "The <code>Accessibility.AXNode</code> for this DOM node, if it exists." }
                 ],
                 "description": "Fetches the accessibility node for this DOM node, if it exists.",
                 "hidden": true
             }
         ]
     }]
 }