Core/Creatures: Filter out trainer spells that belong to a skill that can never be learned by a player with given class and race combination (#23176)

Closes #23172

(cherry picked from commit f221fcdd4b91e27c69a38dc665621797af0640c9)

src/server/game/Entities/Player/Player.cpp

@@ -25178,6 +25178,10 @@ bool Player::IsSpellFitByClassAndRace(uint32 spell_id) const
         if (_spell_idx->second->ClassMask && (_spell_idx->second->ClassMask & classmask) == 0)
             continue;
 
+        // skip wrong class and race skill saved in SkillRaceClassInfo.dbc
+        if (!sDB2Manager.GetSkillRaceClassInfo(_spell_idx->second->SkillLine, getRace(), getClass()))
+            continue;
+
         return true;
     }