fix(GRAPHQL): fix empty remove in update mutation patch, that remove all the data for nodes in filter.

[JatinDev543]

We have this behavior of update mutation where we are deleting all the data for nodes that are selected in the filter when we give empty remove {} in the update patch.
For example in the below case , we delete everything for node with id 0x123

mutation updateAuthor($patch: UpdateAuthorInput!) {
      updateAuthor(input: $patch) {
        author {
          id
        }
      }
    }

variables:

{
    "patch": {
      "filter": {
        "id": ["0x123"]
      },
      "remove": {}
    }
}

This can be more dangeours if we apply filter also empty like below, in that case it will delete every node of type Author.

{
    "patch": {
      "filter": {
        "id": ["0x123"]
      },
      "remove": {}
    }

We are now changing this behaviour , such that empty remove{}, doesn't have any effect.

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This change is