Redundant return in R2

[MaxenceGollier]

There is a return that should not be there in [R2.jl].
(https://github.com/JuliaSmoothOptimizers/RegularizedOptimization.jl/blob/c37c5126660ce90ad8145785343b78ebe7fa7b7d/src/R2_alg.jl)

RegularizedOptimization.jl/src/R2_alg.jl

Lines 189 to 204 in c37c512

	return R2(
	reg_nlp,
	x = x0,
	atol = options.ϵa,
	rtol = options.ϵr,
	neg_tol = options.neg_tol,
	verbose = options.verbose,
	max_iter = options.maxIter,
	max_time = options.maxTime,
	σmin = options.σmin,
	η1 = options.η1,
	η2 = options.η2,
	ν = options.ν,
	γ = options.γ,
	)
	return stats

This does not change anything to the results because we do want to return R2(...).
I am opening a PR to remove it.

[MaxenceGollier]

Solved in #150.