Description of problem:
For example, when I try "yum clean all", first yum 
downloads package metadata from repositories, then
removes the metadata which yum just downloaded.

This behavior is apparently redundant.

Version-Release number of selected component (if applicable):
yum-3.2.4-4.fc8

How reproducible:
100%

Steps to Reproduce:
1. yum clean all
  
Actual results:
[root@localhost ~]# yum clean all
livna-devel               100% |=========================| 2.1 kB    00:00     
primary.sqlite.bz2        100% |=========================| 105 kB    00:00     
livna-devel-DEBUG         100% |=========================| 1.9 kB    00:00     
primary.sqlite.bz2        100% |=========================|  36 kB    00:00     
koji                      100% |=========================| 1.1 kB    00:00     
primary.xml.gz            100% |=========================| 2.9 MB    00:03     
<some lines omitted>
core-devel-domes-CACHE    100% |=========================| 2.1 kB    00:00     
primary.sqlite.bz2        100% |=========================| 5.1 MB    00:03     
Cleaning up Everything

Expected results:
"yum clean all" just cleans up metadata, packages and so on

Additional info:
In my memory yum 3.2.1 (maybe also 3.2.2) just cleans up metadata.
For 3.2.3, I forgot how to behave for this.