data_consume_rows_context: Mark RANGE_TOMBSTONE_5 as nonconsuming
data_consume_rows_context: Mark RANGE_TOMBSTONE_5 as nonconsuming

This state does not read any data and is used only to perform
action when finishing to read a primitive type.

According to comment on continuous_data_consumer::non_consuming
such states should be marked as non_consuming.

Tests: units (release)

Signed-off-by: Piotr Jastrzebski <2c0eb4a25a7cde333ff2d0860cb06051925fd74f@scylladb.com>
Message-Id: <55a5c9b76268b50312ecd044291f28dcd8179a22.1523005293.git.2c0eb4a25a7cde333ff2d0860cb06051925fd74f@scylladb.com>

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