Make srpmutil compile with newer rpm library.

Define _RPM_4_4_COMPAT in order to get some old types and declaration.
Remove some unused variables.

Signed-off-by: Frediano Ziglio <frediano.ziglio@citrix.com>
Merge branch 'master' of git://hg.uk.xensource.com/carbon/trunk/planex
Merge commit '0dcb7946b7a8212051a6f3b9d723546f990e9e17'
Merge branch 'master' of git://hg.uk.xensource.com/carbon/trunk-ring0/planex
Merge branch 'master' of git://hg.uk.xensource.com/carbon/trunk/planex
Merge commit 'c3ccc4814ec2027b4b8b8f565bb5ba4f9ec3baa1'
Merge commit '97bb5b1a983448ed6726be4421405d35ae067086'
Merge branch 'master' of git://hg/carbon/trunk/planex