CVE-2022-50400 staging: greybus: audio_helper: remove unused and wrong debugfs usage

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/staging/greybus/audio_helper.c"
    ],
    "versions": [
      {
        "version": "510e340efe0cbd379cf1ff3490d088c3299749b1",
        "lessThan": "d0febad83e29d85bb66e4f5cac0115b022403338",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "510e340efe0cbd379cf1ff3490d088c3299749b1",
        "lessThan": "4dab0d27a4211a27135a6899d6c737e6e0759a11",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "510e340efe0cbd379cf1ff3490d088c3299749b1",
        "lessThan": "5699afbff1fa2972722e863906c0320d55dd4d58",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "510e340efe0cbd379cf1ff3490d088c3299749b1",
        "lessThan": "d835fa49d9589a780ff0d001bb7e6323238a4afb",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "510e340efe0cbd379cf1ff3490d088c3299749b1",
        "lessThan": "d517cdeb904ddc0cbebcc959d43596426cac40b0",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/staging/greybus/audio_helper.c"
    ],
    "versions": [
      {
        "version": "5.9",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.9",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.150",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.75",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.19.17",
        "lessThanOrEqual": "5.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.0.3",
        "lessThanOrEqual": "6.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]