Revert "do we really need to filter at all anymore?"
Revert "do we really need to filter at all anymore?"

This reverts commit 161198f9b385eada3f5d35c20fca068cab64f99a [formerly f37dcd45c6345c8c57e88ca0eb7807ad19d0f32d] [formerly b04d91cebce80c8d9bb311a3e8530bcdcdf90e36 [formerly e387bc18ac91f5f672efebca63939d2361351aac]] [formerly 1fe5652dfae689bda5aa81b719c19f171452c4d6] [formerly d994e2285303b516df485e59ab268d842522435a] [formerly f1f9c12a1bf87271d5b918a0e119ac29edad134c [formerly 25fa578a91bc2f26c2ca612f63df4e92ef827240] [formerly d50da51bfc9851246923165e6e634930986fbd71 [formerly 4a282858e247f9bb67a016781f5b8943d5c5f857]] [formerly d4e4d2ba794d18460d81a2b7aa86c732a062cc52] [formerly d994e2285303b516df485e59ab268d842522435a [formerly d994e2285303b516df485e59ab268d842522435a [formerly d994e2285303b516df485e59ab268d842522435a [formerly 78a63bebe594ad219d5f9fdd83f079994f8a621c]]]]].


Former-commit-id: 9cd50195b5b41c75d019f8943a29fc524ef9dff1 [formerly ed5a19a50ed06fa55d0df385b0f69cde20c63f35] [formerly f58e4249c9d4baff343828e2b4cc8ddf6752d6ab [formerly 820f5dca74a73c0da290169d899d911ca027e620]] [formerly b1741cdc83282e69123257496b095c790062f472] [formerly ba763bf320baf623535edee486fb59eac16fe5d7 [formerly ba763bf320baf623535edee486fb59eac16fe5d7 [formerly ba763bf320baf623535edee486fb59eac16fe5d7 [formerly 8faec77910b2f2e213db0608f5fdc4f81eebddeb]]]]
Former-commit-id: ba763bf320baf623535edee486fb59eac16fe5d7
Former-commit-id: 29e37a8cd7cdf4e53aa97a6ac9da7256a5de6988
Former-commit-id: 3bc17fd9969f6840e1b160d6c6218dccd978bf3a [formerly d54a18866423579799f69382c9bcce15957dd455]
Former-commit-id: 9ff7212988ff80ae74f33df0b53ebbf06609806c
openworm/PyOpenWorm,travs/PyOpenWorm,gsarma/PyOpenWorm,gsarma/PyOpenWorm,openworm/PyOpenWorm,kaustubhcs/PyOpenWorm,hnunner/PyOpenWorm