Why Buddha said "if you want to remove small/light codes from Vinaya"? In Maha-parinibbana Sutta, Buddha said "if Sanga want, after I completed Parinibbana, you can remove small and/or light codes from Vinaya". Why Buddha said this approval to Sanga? Is it a kind of testing to future members of Sanga whether they can completely comply the Vinaya or not? This approval may lead to breakage of Sanga to Mahayana, Theravada, and more. This approval, is it being served as a reference to other parties of Sanga who cannot comply the vinaya completely not to be blamed by normal people? Or is it just a question to just Sanga at the time of been said and this was the way to be. Or any purpose of this approval? Or is it totally not approval, and just question?
If the Buddha had totally approved the removal of certain rules then the Buddha would have explicitly mentioned which ones.

In the 1st Council the monks could not decide what extent was minor rules, so ultimately decided to keep all the rules with the fault of not clarifying being with Ven. Ananda when the Buddha mentioned this.