Core/Misc: Fix static analysis issues

src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/hyjal_trash.cpp

@@ -1343,9 +1343,9 @@ public:
 
             if (!me->IsWithinDist(me->GetVictim(), 20) || forcemove)
             {
-                forcemove = false;
                 if (forcemove)
                 {
+                    forcemove = false;
                     if (Unit* target = SelectTarget(SELECT_TARGET_RANDOM, 0))
                         me->Attack(target, false);
                 }

src/server/scripts/Kalimdor/CavernsOfTime/EscapeFromDurnholdeKeep/instance_old_hillsbrad.cpp

@@ -165,7 +165,7 @@ public:
                             m_auiEncounter[4] = NOT_STARTED;
                             m_auiEncounter[5] = NOT_STARTED;
                         }
-                        else if (mThrallEventCount > 20)
+                        else
                         {
                             m_auiEncounter[1] = data;
                             m_auiEncounter[2] = data;

src/server/scripts/Kalimdor/zone_the_barrens.cpp

@@ -486,7 +486,7 @@ public:
                                 Talk(SAY_TWIGGY_FLATHEAD_OVER);
                                 Reset();
                             }
-                            else if (creature) // Makes BIG WILL attackable.
+                            else // Makes BIG WILL attackable.
                             {
                                 creature->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
                                 creature->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE);

src/server/scripts/Northrend/Nexus/EyeOfEternity/boss_malygos.cpp

@@ -1182,7 +1182,7 @@ public:
                 else if (unit->GetTypeId() == TYPEID_PLAYER)
                     me->SetDisableGravity(true);
             }
-            else if (!apply)
+            else
             {
                 if (unit->GetTypeId() != TYPEID_PLAYER)
                 {
@@ -1285,7 +1285,7 @@ public:
                 if (unit->GetTypeId() == TYPEID_UNIT)
                     unit->CastSpell(unit, SPELL_TELEPORT_VISUAL_ONLY);
             }
-            else if (!apply)
+            else
             {
                 me->StopMoving();
                 me->SetDisableGravity(false);

src/server/scripts/Northrend/Nexus/Oculus/instance_oculus.cpp

@@ -237,7 +237,7 @@ class instance_oculus : public InstanceMapScript
                         return KILL_NO_CONSTRUCT;
                     else if (CentrifugueConstructCounter == 1)
                         return KILL_ONE_CONSTRUCT;
-                    else if (CentrifugueConstructCounter > 1)
+                    else
                         return KILL_MORE_CONSTRUCT;
                 }