rpm/configure.sh: Remove unnecessary directories
rpm/configure.sh: Remove unnecessary directories

These were introduced in change 18c6b647 to support
storing Mock's cache and chroot in the workspace.
Most of this was reverted in commit abc1705b.

Signed-off-by: Euan Harris <c3b6e83069c8e9e3af49a38fec6026be89559638@citrix.com>

simonjbeaumont/planex,simonjbeaumont/planex,djs55/planex,djs55/planex,simonjbeaumont/planex,djs55/planex