Remove the logic to update Troll's Bridge passability after visiting it

Not sure what was it for but in the original game the passability doesn't change.

Author: ihhub

src/fheroes2/ai/ai_hero_action.cpp

@@ -1479,7 +1479,6 @@ namespace
 
                 // Set ownership of the dwelling to a Neutral (gray) player so that any player can recruit troops without a fight.
                 setColorOnTile( tile, Color::UNUSED );
-                tile.SetObjectPassable( true );
             }
             else {
                 AIBattleLose( hero, res, true );

src/fheroes2/heroes/heroes_action.cpp

@@ -2466,7 +2466,6 @@ namespace
 
                 // Set ownership of the dwelling to a Neutral (gray) player so that any player can recruit troops without a fight.
                 setColorOnTile( tile, Color::UNUSED );
-                tile.SetObjectPassable( true );
 
                 if ( fheroes2::showStandardTextMessage( title, victoryMsg, Dialog::YES | Dialog::NO ) == Dialog::YES ) {
                     const Troop troop = getTroopFromTile( tile );

src/fheroes2/maps/maps_tiles.cpp

@@ -1085,18 +1085,6 @@ bool Maps::Tile::isPassableFrom( const int direction, const bool fromWater, cons
     return ( direction & _tilePassabilityDirections ) != 0;
 }
 
-void Maps::Tile::SetObjectPassable( bool pass )
-{
-    if ( getMainObjectType( false ) == MP2::OBJ_TROLL_BRIDGE ) {
-        if ( pass ) {
-            _tilePassabilityDirections |= Direction::TOP_LEFT;
-        }
-        else {
-            _tilePassabilityDirections &= ~Direction::TOP_LEFT;
-        }
-    }
-}
-
 bool Maps::Tile::isStream() const
 {
     for ( const auto & part : _groundObjectPart ) {

src/fheroes2/maps/maps_tiles.h

@@ -283,8 +283,6 @@ namespace Maps
 
         void ClearFog( const int colors );
 
-        void SetObjectPassable( bool pass );
-
         const std::array<uint32_t, 3> & metadata() const
         {
             return _metadata;