Reverting r84309 (New pages log doesn't remove/update item after suppression redirect...

Reverting r84309 (New pages log doesn't remove/update item after suppression redirect). Per the patch author and committer's own admission, this doesn't seem like the correct fix. I haven't dug into it deeply, but I tend to agree. Reverting to the status quo rather than have this make it into a release half-baked. Reopening bug 17463 so this can get some more discussion (also this definitely needed RELEASE-NOTES)