configure: allow anachronisms with icc for burg
configure: allow anachronisms with icc for burg

burg's code uses anachronisms a lot, too many to fix, since it's gone in
default/Apr2011 it makes little to no sense to fix it, so just disable
the remark.

http://monetdb.cwi.nl/testing/projects/monetdb/testweb/logs/39245:124139f4ff4a/Int-Fedora-i386-propcheck/make.html#l124

zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb