[R-package] allow construction of Dataset from CSV without header (fixes #4553)#4554

Merged

jameslamb merged 1 commit intomasterfrom r/unused-dataset-code

Aug 25, 2021

+42-10

Commits on Aug 25, 2021

[R-package] remove unused code checking has_header in Dataset() (fixes #4553 )
jameslamb
committed