sstables: Don't call consume_range_tombstone_end in consume_partition_end
sstables: Don't call consume_range_tombstone_end in consume_partition_end

We don't need to check _opened_range_tombstone and _mf_filter again

Signed-off-by: Piotr Jastrzebski <2c0eb4a25a7cde333ff2d0860cb06051925fd74f@scylladb.com>

scylladb/scylla,scylladb/scylla,avikivity/scylla,avikivity/scylla,scylladb/scylla,scylladb/scylla,avikivity/scylla