Clean up no longer present test suites from _build#2626

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4tyTwo wants to merge 3 commits intoerlang:mainfrom

4tyTwo:fix/dont-run-deleted-or-renamed-tests-suites

Commits on Oct 9, 2021

Cleanup no longer present test suites from _build
4tyTwo
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Commits on Oct 10, 2021

Handle case when there are no test sources
4tyTwo
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Commits on Oct 12, 2021

Delete unreachable clause in rebar_prv_common_test:do/2
4tyTwo
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