* device/lib/Makefile.in: added the -f option to rm so it doesn't

* device/lib/Makefile.in: added the -f option to rm so it doesn't
  prompt for file deletion a few hundred times (especially the
  subversion files, which have ro permissions so it asks for
  confirmation), thanks to Simon McAuliffe;
  added {}+ option to find in order to remove multiple files from a
  single rm commad

git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@4616 4a8a32a2-be11-0410-ad9d-d568d2c75423