CLEANUP: remove uneeded versions in re6stnet software

software/re6stnet/software.cfg

@@ -110,16 +110,7 @@ md5sum = 0bf4f2c03e06b55c6c6cc55fa33e65d6
 
 [versions]
 re6stnet = 0.501
-ecdsa = 0.13
-gitdb = 0.6.4
-plone.recipe.command = 1.1
-pycrypto = 2.6.1
-pycurl = 7.43.0
 slapos.recipe.template = 4.3
-smmap = 0.9.0
-dnspython = 1.15.0
-erp5.util = 0.4.51
-passlib = 1.7.1
 
 # Required by:
 # re6stnet===0-413.gbec6b3c.dirty