Core: whitespace cleanup, reduce double blank line to single (#25795)

* Core/Misc: fix double empty line

* worldserver.conf

(cherry picked from commit a32b6b8ac4)

src/server/scripts/Spells/spell_item.cpp

@@ -2809,7 +2809,6 @@ enum ReindeerTransformation
     SPELL_REINDEER_60                           = 25858,
 };
 
-
 class spell_item_reindeer_transformation : public SpellScript
 {
     PrepareSpellScript(spell_item_reindeer_transformation);