Commits
David Li authored and Benjamin Kietzman committed af10ca9a39a
ARROW-13660: [C++] Remove seq_num from ExecNode::InputReceived seq_num wasn't very useful especially as there weren't many guarantees around it, and it was tempting to misuse, so let's just remove it. Closes #10961 from lidavidm/arrow-13660 Authored-by: David Li <li.davidm96@gmail.com> Signed-off-by: Benjamin Kietzman <bengilgit@gmail.com>