Remove ifs that originated in a KernelAbstractions Problem

[benedict-96]

This can be done once JuliaGPU/KernelAbstractions.jl#504 has been fixed.

[benedict-96]

This appears in

GeometricMachineLearning.jl/src/arrays/stiefel_lie_algebra_horizontal.jl

Lines 157 to 162 in 5536a75

	function Base.zeros(backend::KernelAbstractions.Backend, ::Type{StiefelLieAlgHorMatrix{T}}, N::Integer, n::Integer) where T
	StiefelLieAlgHorMatrix(
	zeros(backend, SkewSymMatrix{T}, n),
	N == n ? KernelAbstractions.allocate(backend, T, N-n, n) :
	KernelAbstractions.zeros(backend, T, N-n, n), N, n)
	end

for example. The if should not be necessary.