[Heimdal-source-changes] [heimdal/heimdal] 511b5e: Revert "travis: Use ccache to speed up builds"

[Nico Williams]

  Branch: refs/heads/master
  Home:   https://github.com/heimdal/heimdal
  Commit: 511b5e4e97bb9d150ae713fb82d2ce2449a80a26
      https://github.com/heimdal/heimdal/commit/511b5e4e97bb9d150ae713fb82d2ce2449a80a26
  Author: Nicolas Williams <nico at twosigma.com>
  Date:   2020-04-24 (Fri, 24 Apr 2020)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  Revert "travis: Use ccache to speed up builds"

This reverts commit 37dee9bbc3cefdbe772ef68881f54ac743fd8715, which did
not help speed up Travis-CI builds.