The situational abilities are
So looking at these the first I would remove is snake trap. Its really only useful to distract mobs while soloing. Widow venom should be part of serpent as people have said. You pretty much never use scare beast, its not on my bars. As a hunter that would like a pet free spec, not having a pet gets rid of a few buttons. Flare could also go if Track Hidden worked better. Scatter shot could be put into a glyph to augment another shot, not sure which one, or you could have a Scatter/Tranq/Something else talent tier.
If they were to remove a talent tier I would prefer it was the one with MoC in it. The class needs less pet abilities. I would also probably change the tier before that to be the "pet" talents but it would be something like stampede/dire beast(extra pet permanent but no focus gain)/No pet. It would get rid of a lot of the short term CDs that make our rotations ridiculous.