Core/Misc: Fix static analysis issues

src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheChampion/trial_of_the_champion.cpp

@@ -470,7 +470,7 @@ public:
             instance->GetData(BOSS_ARGENT_CHALLENGE_P) == NOT_STARTED &&
             instance->GetData(BOSS_BLACK_KNIGHT) == NOT_STARTED)
             AddGossipItemFor(player, GOSSIP_ICON_CHAT, GOSSIP_START_EVENT1, GOSSIP_SENDER_MAIN, GOSSIP_ACTION_INFO_DEF+1);
-        else if (instance)
+        else if
             AddGossipItemFor(player, GOSSIP_ICON_CHAT, GOSSIP_START_EVENT2, GOSSIP_SENDER_MAIN, GOSSIP_ACTION_INFO_DEF+1);
 
         SendGossipMenuFor(player, player->GetGossipTextId(creature), creature->GetGUID());

src/server/scripts/Outland/TempestKeep/Eye/boss_kaelthas.cpp

@@ -1119,8 +1119,7 @@ class boss_grand_astromancer_capernian : public CreatureScript
                 //Conflagration_Timer
                 if (Conflagration_Timer <= diff)
                 {
-                    Unit* target = NULL;
-                    target = SelectTarget(SELECT_TARGET_RANDOM, 0);
+                    Unit* target = SelectTarget(SELECT_TARGET_RANDOM, 0);
 
                     if (target && me->IsWithinDistInMap(target, 30))
                         DoCast(target, SPELL_CONFLAGRATION);