Anton Shestakov <av6@dwimlabs.net> [Mon, 13 Jan 2020 15:36:24 +0700] rev 5072
obshistory: remove unused ismetablacklisted()
Code that used this function was removed in 461b9a91b662.
But we still need to add one item currently missing from METABLACKLIST in core:
touch noise.
Anton Shestakov <av6@dwimlabs.net> [Mon, 13 Jan 2020 15:04:02 +0700] rev 5070
obshistory: remove unused _successorsetdates() and _successorsetusers()
They were used by preparesuccessorset() that was removed in the previous patch.