Introduced in d73b8dd4f3
Unfortunately, the `Sculpt` struct has an implicitly generated copy
constructor which accesses the deprecated field in `sculpt_ops.cc`,
instead of allowing access to potentially deprecated fields at runtime,
this commit silences the warning by appending `_deprecated` to the field
and removing `DNA_DEPRECATED` from it.
Additionally, to preserve forward compatibility, the field is added to
`dna_rename_defs.h`
Pull Request: https://projects.blender.org/blender/blender/pulls/141298