Don't link pure and SOLID_NOT entities to the area grid in DP master
Currently in DP master, perf is awful near '0 0 0', and a busy server can "lag out" with 100ms frametimes, because darkplaces!131 (merged) was merged but not enabled.
This doesn't change the DP master pipeline hash (different from the div0-stable pipeline hash).
Closes darkplaces#381 (closed)
Edited by bones_was_here