Now that all supported versions write mc/md sstables, we can deprecate the MC_SSTABLE feature bit and consider it implicitly true, and with it the ability to write la/ka sstables.
We still need to support reading them, e.g. from restoring old snapshots or migrating data from legacy clusters.
Test: unit(dev, debug)
Fixes#8352Closes#8884
* github.com:scylladb/scylla:
compress: Remove unused make_compressed_file_k_l_format_output_stream
sstables: move sstable_writer to separate header
sstable_writer: remove get_metadata_collector
sstables: stop including metadata_collector.hh in sstables.hh
sstables: Remove duplicated friend declaration
sstables: remove unused KL writer
sstables: Always use MC/MD writer
sstable_datafile_test: switch tests to use latest sstables format
sstable_datafile_test: switch compaction_with_fully_expired_table to latest sstable version
test_offstrategy_sstable_compaction: test all writable sstables
compaction_with_fully_expired_table: Remove some LA specific code
sstable_mutation_test: test latest sstable format instead of LA
sstable_test: Test MX sstables instead of KA/LA
sstable_datafile_test: Fix schema used by check_compacted_sstables
sstables: Remove LA/KA sstable writting tests that check exact format
sstables: define writable_sstable_versions
features: assume MC_SSTABLE and UNBOUNDED_RANGE_TOMBSTONES are always enabled
c0c1e26014