Updated install.lua

diff --git a/ElvUI_SLE/modules/install.lua b/ElvUI_SLE/modules/install.lua
index 5366e90..58270df 100644
--- a/ElvUI_SLE/modules/install.lua
+++ b/ElvUI_SLE/modules/install.lua
@@ -233,7 +233,7 @@ function E:SetupPixelPerfect(enabled, noMsg)
 	E.PixelMode = enabled
 end

-function E:SetupTheme(theme, noDisplayMsg, noPopup)
+function E:SetupTheme(theme, noDisplayMsg)
 	local classColor = RAID_CLASS_COLORS[E.myclass]
 	E.private.theme = theme