Revert [5501] as this seems to be just wrong!

L2J_Server_BETA/java/com/l2jserver/gameserver/model/actor/L2Character.java

@@ -2032,7 +2032,7 @@ public abstract class L2Character extends L2Object implements ISkillsHolder
 	 */
 	protected boolean checkDoCastConditions(L2Skill skill)
 	{
-		if ((skill == null) || isSkillDisabled(skill))
+		if ((skill == null) || isSkillDisabled(skill) || (((skill.getFlyRadius() > 0) || (skill.getFlyType() != null)) && isMovementDisabled()))
 		{
 			// Send a Server->Client packet ActionFailed to the L2PcInstance
 			sendPacket(ActionFailed.STATIC_PACKET);