666c2ea012
`bAnimContext` had a float property called `yscale_fac` that was used to define the height of the keyframe channels. However the property was never set, only read so there really is no need to have it in the struct. Moreover it complicated getting the channel height because `bAnimContext` had to be passed in. Speaking of getting the channel height. This was done with macros. I ripped them all out and replaced them with function calls. Originally it was introduced in this patch: https://developer.blender.org/rB095c8dbe6919857ea322b213a1e240161cd7c843 Co-authored-by: Christoph Lendenfeld <chris.lenden@gmail.com> Pull Request #104500