Anything over 50mm is not street photography, it is voyeurism
And from a practical standpoint, street photography is a tad dicey past ~70mm at least in real street situations... you have too many obstructions, people get in the way, closer walkers blur a lot faster, while some of this can be viewed as "creative"...in real life, a litle "creativity" goes a long way.
Also with telephoto lenses you lose the intimacy that is a vital component of most memorable "street" shots.
In street photography my personal creed is:
-Pixel peeping is counter productive.
-The moment matters, fast autofocus helps.
-Be wide enough to include some context to the scene.
For all these reasons my preferred lenses remain the 35L or 50 f/1.4. However, depending on the context, even the 85 f/1.8 or 135L can work, but I would call those instances rare.
Edit: I left out in the list "do not
use over-obvious equipment and big bulky zooms...it is off-putting; smaller the footprint, the better". But in someways even the 35L, 85 1.8 and 135L with hoods break this rule as they are rather noticeable.