Do not check phone validity with location change crm lines

CHANGELOG:

### Fix
- [#846](https://gitlab.com/coopdevs/odoo-somconnexio/-/merge_requests/846) Do not check phone's duplicity with location change crm lines

Related card: https://trello.com/c/DlJXDx9L/1335-problema-cu-n%C3%BAmero-de-fix-ja-existent

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