Remove deprecated call to GuzzleHttp\headers_from_lines()

mvc → changed the visibility of the branch 2.0.x to hidden.

mvc → changed the visibility of the branch 2.0.x to hidden.

mvc → changed the visibility of the branch 2.0.x to active.

Fixed in 23ae4d8d. Thanks!

Somehow I did not seem to have permissions to push to the issue fork (search_api_fusion-3413577) so I had to push directly to 2.0.x.

Automatically closed - issue fixed for 2 weeks with no activity.