-Fix SC__SHADOWFORM not ending if target does not move after being warp. bugreport:7271
-- Thus allowing to inflict damage between map (only if both player don't move).
-- Cleanup old map-check on move check. 

git-svn-id: https://rathena.svn.sourceforge.net/svnroot/rathena/trunk@17148 54d463be-8e91-2dee-dedb-b68131a5f0ec