Why `eye` has been deprecated?

[swissr]

https://github.com/JuliaLang/julia/pull/28456/commits/3b84ab46d4ec1aab70ee537e0d1a704e0df84b10.
there was a really witty comment in ‘stdlib/LinearAlgebra/src/deprecated.jl’ (gone now too):

- ## goodbeye, eye!
- export eye
- function eye(m::Integer)
-     depwarn(string( ...
- ...