Purpose of `∂vector_rotate∂p`

[rejuvyesh]

Dojo.jl/src/orientation/rotate.jl

Line 7 in 0d54f76

∂vector_rotate∂p(p::AbstractVector, q::Quaternion) = VRᵀmat(q) * LVᵀmat(q)

I wasn't sure what this function is supposed to do here, but p is unused.

[thowell]

This method is unnecessary. It simply returns a rotation matrix for a given quaternion since vector_rotate is always linear in p. I think was useful as we derived expressions using chain rule, but we can remove this method and replace instances of it throughout the code.

[simon-lc]

I removed this function from the code. Thanks Jayesh for pointing this out!