<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=http://email.email.llvm.org/c/eJyllFFvmzAQxz8NvJyCiANJ88BDsrTSpK6Zuu0DGHyAN8dGtmnKPv3OQNemzZ4mWYnvfBy__92Z0oihiNgKDugqKzsvjY7SQ5Tu5t91ulNnPri9Rf5rV3u0B6ylliHwEX1v9fehQwoD6YArhQ0KNYDAzmLFPQooew--Regd2hDkvFQKamMrOvQm-EF6OLeooeSOnEYDJk0SsU_wxfymaJ5cMBHuI-U3oq_e894-81OnMOS1SO84cR-tXrXMazSl9nDiUkfsJmJbiDb7aHO4GkmbpFJcN4s5I6mtpcKPmQd-UpNrsVhMm32QdNTf_DA-8KLor5RpwfcWqQ7-bMCMTXCwuz8-3IIgfWzjgdc1VlMhLbpeeSBusgagQpS8pJq71vRKkJYp9_u-vekWYTwYjVPcV9Rc-eH1-Kg_e3c863upx9D0PeuPuZNveqhFmAoS0JJ_lkhDUPNAik_UWk90TQv_pgoZAxVNEZ2K4bqKq9N3oSdJkutdnAekozoS9VTF8GjESNsuNDQg9LpqqdUoJjecZSCfKo_PnZIVDatAmgfLAwaY-oOoa5AzVCyKldiutjzmPSW2BV0To6l8T3FvVdF637kwV-yOVkPv7sukMicylHp6-VtQz3-SDDKlcz062uTsJmdxW6TLrFqzLOUZ49VWIK5LUZbLNM_KfL3NNrHiJSpXRPk-YkzjGcYUtI_yQ_z_BLJgKVsuGVstWX6Tr5MsW2-EEBUXy2y1EXWUpUj3TiUhT2JsE9tiTFn2jaNDJZ13r4fcOdloxBGYCL30ajQubmR-gLuLLwp_-wmarlQ8khYj5h8JQ5oU>52852</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [clang-format] Forced to use a deprecated option
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          reconndev
      </td>
    </tr>
</table>

<pre>
    # Description

`AlwaysBreakAfterDefinitionReturnType` is allegedly deprecated but the user is still forced to use it when based on e.g., Mozilla.

# Reproduction

Example to reformat:
```
int main() {}
```
`.clang-format` file:
```yaml
---
BasedOnStyle: Mozilla
### These two options ALONE don't affect the result (they probably should)
AlwaysBreakAfterReturnType: None
PenaltyReturnTypeOnItsOwnLine: 0
### User is forced to undefine this Mozilla default even though AlwaysBreakAfterReturnType is None already
AlwaysBreakAfterDefinitionReturnType: None
...
```

Expected result: **file is unchanged** without the explicit declaration of AlwaysBreakAfterDefinitionReturnType.

</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJx1k99umzAUxp_G3FhBxISQXHCRLK00qWumrnsAgw_gzbGRbZqyp98x0DVpM8kC_zkcft85n0sjhoKwlB7AVVZ2XhpNkgNJdvNznezUmQ9ub4H_3tUe7AFqqWUIfALfW_08dIBhVDrKlYIGhBqogM5CxT0IWvae-hZo78CGIOelUrQ2tsJDb8I-lZ6eW9C05A43jaYQNzFhX-g38wejeXzFhLhPmN-IvvrIe_fKT52CkNcC_uPEPUnftcxjXErt6YlLTdiGsC0l-Z7kh5uROIkrxXWzmDOi2loq-Jx54Cc1bS0Wi2myD5KO-ocfxg_eFP2TMg363ALWwZ8NNWMTHN09HB_vqEB9LPeU1zVUUyEtuF55ity4GigWouQl1ty1plcCtUy5P_btoluI8Wg0THHfQXPlh_fjo_7q3fGsH6QeQ5OPrD_nTl70UIvgChTQ4v4sEU1Q80AKL9haj3RNS_9PFTIGKnQRnorhtoqb7rvSE8fx7S7OBumwjkg9VTF8Shhq24WGBoReVy22GsS0Tc8ykE-Vh9dOyQrNKgD9YHnAoKb-JOoW5AwViSIV23TLIy-9goJk-ytrZQd6f3U1-OVdmrwR9VYVrfedCw5k9zgapOzLuDInXCj18vZaoDt-oWBcSud6cDjJ2CZjUVtk2yxjaZJukhU-RFmnbJMnW5Fu8-VmXfJI8RKUC4iEMQ1nOqbAOVJGsmAJWy4ZS5cs22TreLVa50KIiovlKs1FTVYJ4P1SceCIjW0iW4xIZd84PFTSefd-yJ2TjYaxIiE_77HutkDlRqO7XqLx58UI_xdiDoOX">