small fixes

`UnitExistsFixed(unit) == 1 and true or false` was in bunnys code, i was very confused with this, it shut have never returned correctly, i changed this and reverted this back and forth, now this will work and return correct values.

WeakAuras/BuffTrigger2.lua

@@ -1661,7 +1661,7 @@ local function ScanRaidMarkScanFunc(matchDataChanged)
 end
 
 local function ScanGroupUnit(time, matchDataChanged, unitType, unit)
-  local unitExists = UnitExistsFixed(unit) == 1 and true or false
+  local unitExists = UnitExistsFixed(unit)
   if existingUnits[unit] ~= unitExists then
     existingUnits[unit] = unitExists
 
@@ -1787,7 +1787,7 @@ end
 
 local function RecheckActive(triggerInfo, unit, unitsToRemoveScan)
   local isSelf, role, inParty, class
-  local unitExists = UnitExistsFixed(unit) == 1 and true or false
+  local unitExists = UnitExistsFixed(unit)
   if unitExists and TriggerInfoApplies(triggerInfo, unit) then
     if (not activeGroupScanFuncs[unit] or not activeGroupScanFuncs[unit][triggerInfo]) then
       triggerInfo.maxUnitCount = triggerInfo.maxUnitCount + 1

WeakAuras/LibGroupTalentsWrapper.lua

@@ -93,7 +93,6 @@ if LibGroupTalents then
   end
 
   LibGroupTalents.RegisterCallback(Private.LibGroupTalentsWrapper, "LibGroupTalents_Update", "LibGroupTalentsCallback")
-  LibGroupTalents.RegisterCallback(Private.LibGroupTalentsWrapper, "LibGroupTalents_RoleChange", "LibGroupTalentsCallback")
   LibGroupTalents.RegisterCallback(Private.LibGroupTalentsWrapper, "LibGroupTalents_GlyphUpdate", "LibGroupTalentsCallback")
 
   function Private.LibGroupTalentsWrapper.Register(f)