The removed data relied on the test's own source file having no write
permissions, but that is not a valid assumption -- in a source package
the file wouldn't have had write permissions, in Perforce it would have
depended on whether the file had been checked-out for editing and in git
the file would always have write permission.
Change-Id: I000596f122f2765f97a09a08074938c90e2e9f95
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>