[Accepted] SE-0234: Remove Sequence.SubSequence

SE-0234: Remove Sequence.SubSequence has been accepted.

Review feedback was pretty strongly positive. Several community members voiced their experience that attempting to implement the sub-sequence requirements had been an annoyance to them in the past. No-one seemed to feel that the requirements were actually valuable.

As always, thank you for participating in the evolution process and helping to make Swift a better language.

John McCall
Review Manager