Two deprecated strings back to back or should one be a keeper: alias vs mask?

[peiying2]

These two strings are not in pairs like the other ones due to update. Double check to see if this is correct:

• Version 1:

  fx-private-relay-l10n/en/app.ftl

  Line 534 in cc13778

  profile-label-delete-alias = Delete this alias

• Version 2:

  fx-private-relay-l10n/en/app.ftl

  Line 536 in cc13778

  profile-label-delete-alias-2 = Delete this alias

@maxxcrawford