Revert macro-specific API bridge

api.lua

@@ -31,7 +31,6 @@ API.aurapositional = type(_G.C_UnitAuras) == "table"
 
 API.spellinfo = type(_G.GetSpellInfo) == "function"
 API.actioninfo = type(_G.GetActionInfo) == "function"
-API.macrospell = type(_G.GetMacroSpell) == "function"
 
 API.inventory = type(_G.C_Container) == "table"
   and type(_G.C_Container.GetContainerNumFreeSlots) == "function"
@@ -135,12 +134,6 @@ API.GetActionInfo = function(slot)
   end
 end
 
-API.GetMacroSpell = function(slot)
-  if API.macrospell then
-    return _G.GetMacroSpell(slot)
-  end
-end
-
 API.GetAuraDataByIndex = function(unit, index, filter)
   if API.auras then
     return _G.C_UnitAuras.GetAuraDataByIndex(unit, index, filter)