Fix 0002992: Unable to attach files to bugs on Windows servers with magic quotes ON

M core/gpc_api.php

• (gpc_get_file): The gpc_strip_slashes() is no longer called.

git-svn-id: http://mantisbt.svn.sourceforge.net/svnroot/mantisbt/trunk@2142 <a class="text" href="/?p=mantisbt.git;a=object;h=f5dc347c">f5dc347c</a>-c33d-0410-90a0-b07cc1902cb9