Minor optimization by replacing custom clearTable() function with wipe()

Omen.lua

@@ -50,8 +50,7 @@ LSM:Register("sound", "Aoogah!", [[Interface\AddOns\Omen\aoogah.ogg]])
 -----------------------------------------------------------------------------
 -- Localize some global functions
 local floor, format = floor, format
-local sort = sort
-local tinsert, tremove = tinsert, tremove
+local tinsert, tremove, sort, wipe = tinsert, tremove, sort, wipe
 local UnitDetailedThreatSituation = UnitDetailedThreatSituation
 local UnitExists, UnitGUID, UnitName, UnitClass = UnitExists, UnitGUID, UnitName, UnitClass
 local UnitIsPlayer, UnitPlayerControlled, UnitCanAttack = UnitIsPlayer, UnitPlayerControlled, UnitCanAttack
@@ -229,18 +228,6 @@ local function delTable(t)
 	return nil -- return nil to assign input reference
 end
 
--- Empties a table of everything -- Non-recursive
-local function clearTable(t)
-	if type(t) == "table" then
-		for k, v in pairs(t) do
-			t[k] = nil
-		end
-		t[true] = true
-		t[true] = nil
-		setmetatable(t, nil)
-	end
-end
-
 
 -----------------------------------------------------------------------------
 -- Omen initialization and frame functions
@@ -1395,7 +1382,7 @@ function Omen:UpdateBars()
 		if lastWarn.mobGUID ~= mobGUID then
 			delTable(threatStore)
 			threatStore = newTable()
-			clearTable(threatStoreTime)
+			wipe(threatStoreTime)
 		end
 		tinsert(threatStore, threatTable)
 		tinsert(threatStoreTime, GetTime())
@@ -1424,7 +1411,7 @@ function Omen:ClearAll()
 	-- Remove TPS data
 	delTable(threatStore)
 	threatStore = newTable()
-	clearTable(threatStoreTime)
+	wipe(threatStoreTime)
 	threatTable = nil
 end