Revert "NO-JIRA Workaround Travis CI package installation issues (#311)" (#372)
Revert "NO-JIRA Workaround Travis CI package installation issues (#311)" (#372)

The workaround has outlived its usefulness and is now causing build failures.

This reverts commit 06c7e64f
gemmellr/qpid-proton,apache/qpid-proton,gemmellr/qpid-proton,apache/qpid-proton,apache/qpid-proton,gemmellr/qpid-proton,astitcher/qpid-proton,astitcher/qpid-proton,gemmellr/qpid-proton,gemmellr/qpid-proton,gemmellr/qpid-proton,astitcher/qpid-proton,apache/qpid-proton,astitcher/qpid-proton,apache/qpid-proton,apache/qpid-proton,astitcher/qpid-proton,astitcher/qpid-proton