[CI] Disable code coverage on Travis-CI #23376
Description
Computing and uploading code coverage data probably makes Travis-CI builds even slower. Since the resulting data isn't currently exploited (and furthermore partial builds can upload bogus data, e.g. showing some C++ uncovered if only R is rebuilt), we should just disable it.
Reporter: Antoine Pitrou / @pitrou
Assignee: Antoine Pitrou / @pitrou
PRs and other links:
Note: This issue was originally created as ARROW-7067. Please see the migration documentation for further details.