This is a follow up to #124054, which made all selected bones get their
location keyed after a targetless IK transform. That solved an issue
where auto-keying was failing to insert location keys on bones that
needed them, but in the process that fix also inserts location keys on
many bones that *don't* need it.
This commit addresses one of the simpler cases of unneccesary location
keys: bones that are connected to their parents. If a bone is connected,
its location will no longer get keyed.
Pull Request: https://projects.blender.org/blender/blender/pulls/124145
95b3daed5d