Remove some redundant explicit NULL checks for pointers before ´delete´ or ´delete[]´ calls since this check is done implicitly when deleting.

Also fixes a memory leak in .reload creature_template command

--HG--
branch : trunk

src/server/game/Spells/Auras/SpellAuras.cpp

@@ -342,8 +342,7 @@ Aura::~Aura()
 {
     // free effects memory
     for (uint8 i = 0 ; i < MAX_SPELL_EFFECTS; ++i)
-        if (m_effects[i])
-            delete m_effects[i];
+         delete m_effects[i];
 
     assert(m_applications.empty());
     _DeleteRemovedApplications();