"
The only real user is view building, which is converted to v2 and then
the v1 version of the mutation from fragments reader is removed.
Tests: unit(dev, release)
"
* 'v2-only-from-fragments-mutations/v1' of https://github.com/denesb/scylla:
readers: remove now unused v1 reader from fragments
test/boost: flat_mutation_reader_test: remove reader from fragments test
replica/table: migrate generate_and_propagate_view_updates() to v2
replica/table: migrate populate_views() to v2
db/view: convert view_update_builder interface to v2
db/view: migrate view_update_builder to v2
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