Scope

• Remove code expecting use_range_v2==false.
• Remove or update tests expecting use_range_v2==false.
• Consider removing public API documented as "may be removed in a future release"
  • MONGOCRYPT_QUERY_TYPE_RANGEPREVIEW_DEPRECATED_STR
  • MONGOCRYPT_ALGORITHM_RANGEPREVIEW_DEPRECATED_STR

Background & Motivation
With MONGOCRYPT-661, there is no longer a need to support "rangePreview". Dropping rangeV1 code may ease future development. IMO modifying code for both rangeV1 and rangeV2 complicates efforts to change the range protocol (MONGOCRYPT-705 + MONGOCRYPT-698)