Make use of PlayerData::swimForce

Engine/source/T3D/player.cpp

@@ -2955,7 +2955,7 @@ void Player::updateMove(const Move* move)
 
       // Clamp acceleration.
       F32 maxAcc = (mDataBlock->swimForce / getMass()) * TickSec;
-      if ( false && swimSpeed > maxAcc )
+      if ( swimSpeed > maxAcc )
          swimAcc *= maxAcc / swimSpeed;      
 
       acc += swimAcc;