I'm all for pruning abilities that rarely find any use or are niche at best, but as enhancement shaman, I've lost the following:
-Tremor Totem
-Grounding Totem
-Healing Stream Totem
-Ancestral Guidance
-Windwalk Totem
-Call of the Elements
All which was meaningful utility, at least in PvP. Could also make argument for losing shamanistic rage for inferior astral shift, losing baseline ascendance, baseline lightning shield (useful when glyphed for 10% reduced damage taken), fire nova+flame shock+lava lash interaction removed in favor for crash lightning, dull frontal cone attack.
All of these changes reduced the support-centric enhancement shaman I loved into a squishy damage bot.