ASA 5505 disk0 clean up

Need to clear off some files from my ASA 5505. I'm not sure which I can safely remove.  The first 2 are running asdm and asa so I know those need to stay.  We're using Anyconnect.  the files listed take a lot of space.  But do I need all of them?

  125  22824520    Mar 18 2014 09:49:06  asdm-715-100.bin
  123  27611136    Apr 24 2013 11:13:08  asa902-k8.bin
   22  4096        Oct 06 2011 14:56:24  crypto_archive
  148  393828      Feb 06 2010 15:10:20  crypto_archive/crypto_arch_1.bin
  149  393828      Oct 06 2011 14:56:24  crypto_archive/crypto_arch_2.bin
   10  4096        Jan 28 2010 11:37:18  log
   23  4096        Jan 28 2010 11:37:40  coredumpinfo
   24  59          Apr 24 2013 11:24:20  coredumpinfo/coredump.cfg
  126  8282        Apr 24 2013 11:24:06  8_2_2_0_startup_cfg.sav
  127  1190        Apr 24 2013 11:24:20  upgrade_startup_errors_201304241624.log
 121  244624      Apr 24 2013 10:36:32  anyconnect-EnableFIPS-win-3.1.03103.exe
  122  14336       Apr 24 2013 10:37:52  anyconnect-EnableFIPS-win-3.1.03103.mst
  128  3203909     Feb 03 2010 16:11:16  anyconnect-win-2.4.1012-k9.pkg
  132  31522773    Aug 22 2013 11:42:02  anyconnect-win-3.1.03103-k9.pkg
  133  4929918     Aug 22 2013 11:42:06  anyconnect-win-2.5.6005-k9.pkg
  129  4907314     Feb 03 2010 14:14:02  anyconnect-macosx-powerpc-2.4.1012-k9.pkg
  130  4832344     Feb 03 2010 14:14:28  anyconnect-macosx-i386-2.4.1012-k9.pkg
  131  11293375    Aug 22 2013 11:41:50  anyconnect-macosx-i386-3.1.03103-k9.pkg
  134  2009        Aug 22 2013 11:42:06  anyconnect_clients.xml
  135  10997       Jun 26 2013 14:58:52  oldconfig_2013Jun26_2005.cfg
  136  11844       Mar 18 2014 12:35:32  oldconfig_2014Mar18_1825.cfg
  143  13253       Sep 15 2014 15:16:16  oldconfig_2014Sep15_2016.cfg
  145  13253       Sep 15 2014 15:30:35  oldconfig_2014Sep15_2030.cfg
  137  11504       Aug 22 2013 11:42:18  startup-config.cfg