Update postBody and remove unused property

Author: jasonjoh

sample-queries/sample-queries.json

@@ -26,8 +26,7 @@
       "humanName": "my photo",
       "requestUrl": "/v1.0/me/photo/$value",
       "docLink": "https://docs.microsoft.com/en-us/graph/api/profilephoto-get?view=graph-rest-1.0",
-      "skipTest": false,
-      "foo": "bar"
+      "skipTest": false
     },
     {
       "id": "4f1770a0-b24e-49d6-98b3-df2941de4018",
@@ -2366,7 +2365,7 @@
           "value": "application/json"
         }
       ],
-      "postBody": "{\n    \"requests\": [\n        {\n            \"entityTypes\": [\n                \"listItem\"\n            ],\n            \"query\": {\n                \"queryString\": \"issue\"\n            },\n            \"fields\": [\n                \"id\",\n                \"name\",                \n                \"contentclass\",\n                \"title\",\n                \"fooCustomProperty\"\n            ]\n        }\n    ]\n}",
+      "postBody": "{\n    \"requests\": [\n        {\n            \"entityTypes\": [\n                \"listItem\"\n            ],\n            \"query\": {\n                \"queryString\": \"issue\"\n            },\n            \"fields\": [\n                \"id\",\n                \"name\",                \n                \"contentclass\",\n                \"title\",\n                \"CustomProperty\"\n            ]\n        }\n    ]\n}",
       "tip": "enable Sites.Read.All, Sites.ReadWrite.All",
       "skipTest": false
     },