DevTools: Remove Network.requestServedFromMemoryCache event from protocol.

Source/devtools/protocol.json

Index: Source/devtools/protocol.json
diff --git a/Source/devtools/protocol.json b/Source/devtools/protocol.json
index 2ceec971b917e01a09d71f3c6894fd400e758aba..95047263d478a77436e2e49f02ff92581c5e9e10 100644
--- a/Source/devtools/protocol.json
+++ b/Source/devtools/protocol.json
@@ -1147,19 +1147,6 @@
                 ]
             },
             {
-                "name": "requestServedFromMemoryCache",
-                "description": "Fired when HTTP request has been served from memory cache.",
-                "parameters": [
-                    { "name": "requestId", "$ref": "RequestId", "description": "Request identifier." },
-                    { "name": "frameId", "$ref": "Page.FrameId", "description": "Frame identifier.", "hidden": true },
-                    { "name": "loaderId", "$ref": "LoaderId", "description": "Loader identifier." },
-                    { "name": "documentURL", "type": "string", "description": "URL of the document this request is loaded for." },
-                    { "name": "timestamp", "$ref": "Timestamp", "description": "Timestamp." },
-                    { "name": "initiator", "$ref": "Initiator", "description": "Request initiator." },
-                    { "name": "resource", "$ref": "CachedResource", "description": "Cached resource data." }
-                ]
-            },
-            {
                 "name": "webSocketWillSendHandshakeRequest",
                 "description": "Fired when WebSocket is about to initiate handshake.",
                 "parameters": [