Removes exit from current room.  Note that you must use the exact 
name of the exit to remove.  In other words, if it's a 'north' exit, 
type out 'north'.  The exit from a house cannot be removed. 
Note that room 0 always has the exit to outside the house.

Syntax:
[1;37mremove_exit[1;30m <direction> [1m[2;37;0m

Examples:
remove_exit north 
remove_exit foyer 

[1;30mSee also: add_exit, settings[1m[2;37;0m
