Fix revision metadata redundancy in deposit metadata

In the IPOL deposit and all deposits since the 10th of December 2019 we have a property called extrinsic containing the copy of metadata that should be sent to origin_metadata table.

1. delete this property in the revision metadata
2. check that the metadata is still sent to the origin_metadata table

Here is the example:

}
    "@xmlns": "http://www.w3.org/2005/Atom",
    "@xmlns:codemeta": "https://doi.org/10.5063/SCHEMA/CODEMETA-2.0",
    "author": "Jose-Luis Lisani",
    "codemeta:applicationCategory": "Image Processing On Line (IPOL)",
    "codemeta:dateCreated": "2018-11-14",
    "codemeta:datePublished": "2018-12-07",
    "codemeta:description": "Implementation of Shape Preserving Local Histogram Modification Algorithm",
    "codemeta:identifier": "https://doi.org/10.5201/ipol.2018.236",
    "codemeta:keywords": [
        "contrast enhancement",
        "histogram modification",
        "local processing"
    ],
    "codemeta:license": {
        "codemeta:name": "LGPL-3.0-or-later",
        "codemeta:url": "https://spdx.org/licenses/LGPL-3.0-or-later.html"
    },
    "codemeta:operatingSystem": "Linux",
    "codemeta:programmingLanguage": "C++",
    "codemeta:referencePublication": {
        "codemeta:identifier": "236",
        "codemeta:name": "An Analysis and Implementation of the Shape Preserving\nLocal Histogram Modification Algorithm"
    },
    "codemeta:releaseNotes": "On-line demo available at IPOL webpage",
    "codemeta:url": "https://www.ipol.im/pub/art/2018/236/",
    "external_identifier": "236",
    "extrinsic": {
        "provider": "https://deposit.softwareheritage.org/1/private/551/meta/",
        "raw": {
            "branch_name": "master",
            "origin": {
                "type": "deposit",
                "url": "https://www.ipol.im/87afca27-ebbb-408a-845d-5277b6a92f49"
            },
            "origin_metadata": {
                "metadata": {
                    "@xmlns": "http://www.w3.org/2005/Atom",
                    "@xmlns:codemeta": "https://doi.org/10.5063/SCHEMA/CODEMETA-2.0",
                    "author": "Jose-Luis Lisani",
                    "codemeta:applicationCategory": "Image Processing On Line (IPOL)",
                    "codemeta:dateCreated": "2018-11-14",
                    "codemeta:datePublished": "2018-12-07",
                    "codemeta:description": "Implementation of Shape Preserving Local Histogram Modification Algorithm",
                    "codemeta:identifier": "https://doi.org/10.5201/ipol.2018.236",
                    "codemeta:keywords": [
                        "contrast enhancement",
                        "histogram modification",
                        "local processing"
                    ],
                    "codemeta:license": {
                        "codemeta:name": "LGPL-3.0-or-later",
                        "codemeta:url": "https://spdx.org/licenses/LGPL-3.0-or-later.html"
                    },
                    "codemeta:operatingSystem": "Linux",
                    "codemeta:programmingLanguage": "C++",
                    "codemeta:referencePublication": {
                        "codemeta:identifier": "236",
                        "codemeta:name": "An Analysis and Implementation of the Shape Preserving\nLocal Histogram Modification Algorithm"
                    },
                    "codemeta:releaseNotes": "On-line demo available at IPOL webpage",
                    "codemeta:url": "https://www.ipol.im/pub/art/2018/236/",
                    "external_identifier": "236",
                    "title": "mlheIPOL"
                },
                "provider": {
                    "metadata": {},
                    "provider_name": "",
                    "provider_type": "deposit_client",
                    "provider_url": "https://www.ipol.im/"
                },
                "tool": {
                    "configuration": {
                        "sword_version": 2
                    },
                    "name": "swh-deposit",
                    "version": "0.0.1"
                }
            }
        },
        "when": "2020-04-20T23:16:11.436881+00:00"
    },
    "original_artifact": [
        {
            "checksums": {
                "sha1": "cdce42697925513b15824f69bd461ec6f3bc9571",
                "sha256": "2a261e6b673f09f60185f6fbf874a828d3b5aeee946d38dd2f2bc4d899db0b1a"
            },
            "filename": "archive.zip",
            "length": 661595
        }
    ],
    "title": "mlheIPOL"
}

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Migrated from T2374 (view on Phabricator)