Core/Spells: don't allow spells which hit target only with SPELL_EFFECT_DUMMY to execute spell triggers on that targets, also cleanup related code a bit.

src/server/game/Spells/SpellMgr.cpp

@@ -3753,8 +3753,6 @@ void SpellMgr::LoadSpellCustomAttr()
             ++count;
             break;
         case 27820: // Mana Detonation
-        //case 28062: case 39090:             // Positive/Negative Charge
-        //case 28085: case 39093:
         case 69782: // Ooze Flood
         case 69796: // Ooze Flood
         case 69798: // Ooze Flood
@@ -3893,10 +3891,6 @@ void SpellMgr::LoadSpellCustomAttr()
             spellInfo->EffectMiscValue[0] |= 1;
             ++count;
             break;
-        case 52025: // Cleansing Totem Effect
-            spellInfo->EffectDieSides[1] = 1;
-            ++count;
-            break;
         case 51904: // Summon Ghouls On Scarlet Crusade (core does not know the triggered spell is summon spell)
             spellInfo->EffectImplicitTargetA[0] = TARGET_UNIT_CASTER;
             ++count;
@@ -4243,14 +4237,6 @@ void SpellMgr::LoadSpellCustomAttr()
                     break;
                 ++count;
                 break;
-                // Do not allow Deadly throw and Slice and Dice to proc twice
-            case SPELLFAMILY_ROGUE:
-                if (spellInfo->SpellFamilyFlags[1] & 0x1 || spellInfo->SpellFamilyFlags[0] & 0x40000)
-                    spellInfo->AttributesEx4 |= SPELL_ATTR4_CANT_PROC_FROM_SELFCAST;
-                else
-                    break;
-                ++count;
-                break;
             case SPELLFAMILY_PALADIN:
                 // Seals of the Pure should affect Seal of Righteousness
                 if (spellInfo->SpellIconID == 25 && spellInfo->Attributes & SPELL_ATTR0_PASSIVE)