file_manager: Remove unused fields from DriveEntryProperties

chrome/common/extensions/api/file_browser_private.json

Index: chrome/common/extensions/api/file_browser_private.json
diff --git a/chrome/common/extensions/api/file_browser_private.json b/chrome/common/extensions/api/file_browser_private.json
index 939c12986dea6e33da1654c0e744758e52f1051e..1c10537f7eea1d83ed3d4bb1e21cd92c336bd3f3 100644
--- a/chrome/common/extensions/api/file_browser_private.json
+++ b/chrome/common/extensions/api/file_browser_private.json
@@ -71,11 +71,6 @@
         "type": "object",
         "description": "Drive file properties.",
         "properties": {
-          "fileUrl": {
-            "type": "string",
-            "optional": true,
-            "description": "the URL given for this file."
-          },
           "thumbnailUrl": {
             "type": "string",
             "optional": true,
@@ -101,11 +96,6 @@
             "optional": true,
             "description": "True if the file is hosted on a Drive server instead of local."
           },
-          "errorCode": {
-            "type": "integer",
-            "optional": true,
-            "description": "The error code (from base::PlatformFileError) if fetching the properties for this file had an error."
-          },
           "customIconUrl": {
             "type": "string",
             "optional": true,