guilt: force removal when uninstalling

Upstream-Status: Inappropriate [oe-specific]

Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>

--- a/uninstall.orig
+++ b/uninstall
@@ -12,4 +12,4 @@
 
 shift
 
-(cd $PRE; rm "$@")
+(cd $PRE; rm -f "$@")