Revert useless cwc improvement (commit 9145) in cache code.

git-svn-id: http://streamboard.de.vu/svn/oscam/trunk@9147 4b0bc96b-bc66-0410-9d44-ebda105a78c1
*this is more safety for commit #9146

git-svn-id: http://streamboard.de.vu/svn/oscam/trunk@9148 4b0bc96b-bc66-0410-9d44-ebda105a78c1