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_dh.cpp

@@ -196,7 +196,6 @@ class spell_dh_chaos_strike : public AuraScript
     }
 };
 
-
 // 206416 - First Blood
 class spell_dh_first_blood : public AuraScript
 {
@@ -458,14 +457,12 @@ void AddSC_demon_hunter_spell_scripts()
 
     /* Spells & Auras */
 
-
     /* Auras */
 
     RegisterSpellScript(spell_dh_first_blood);
 
     /* AreaTrigger */
 
-
     /* Spells */
 
     RegisterSpellScript(spell_dh_blade_dance);