removed darths comment and removed a Blizz function not used in this file

diff --git a/ElvUI_SLE/core/core.lua b/ElvUI_SLE/core/core.lua
index 309411f..6d6cf95 100644
--- a/ElvUI_SLE/core/core.lua
+++ b/ElvUI_SLE/core/core.lua
@@ -5,7 +5,6 @@ local UF = E:GetModule('UnitFrames')
 local addon = ...

 --localizing functions--
-local IsInInstance = IsInInstance
 local tinsert = tinsert

 SLE.version = GetAddOnMetadata("ElvUI_SLE", "Version")
@@ -80,5 +79,4 @@ function SLE:Initialize()
 	ConfigCats()
 	SLE:RegisterCommands()
 	CheckIncompatible()
-    --woo
 end
\ No newline at end of file