delete all files will delete hidden files, this way it will cleanup old svn files

git-svn-id: svn://svn.code.sf.net/p/ditto-cp/code/trunk@791 595ec19a-5cb4-439b-94a8-42fb3063c22c

DittoSetup/BuildDitto.bld

@@ -21,7 +21,6 @@
 			<ContinueFail type='11'>-1</ContinueFail>
 			<DelDirs type='11'>-1</DelDirs>
 			<Ext>*</Ext>
-			<HideOn type='11'>-1</HideOn>
 			<Path>%workdir%</Path>
 			<Recurse type='11'>-1</Recurse>
 			<SysOn type='11'>-1</SysOn>