Revert "manisort"

This reverts commit b22d640684f6001bfd63316a6a3ce69127745943.
Revert "t/TEST: RFC start to separate out valgrind test support."

This reverts commit 08ac0af6a0260a3939c4904c299200adee71010d.
Revert "t/TEST: suppress 2 uninitialized envars under make test.valgrind"

This reverts commit e28ec392de528ba135a100709ce789a168286f86.
Revert "t/TEST: change timings Storable key: perf -> times, a better description"

This reverts commit ba369d6f39f2f98f9e999dc978baeba4d4efba25.
Revert "t/TEST: simplify <$results> processing loop. - TAP13.1+"

This reverts commit b8059a1db50cef0ea798275144b6d2f54a288946.
Revert "t/TEST: add -lxperf option to run tests under linux's perf stat"

This reverts commit 02a483e9608abd0f822d7c8ec6d64c07c4689e55.
Revert "t/TEST: move do_nothing test after option-handling code"

This reverts commit 922487b2e3c980db625829f57958aac6a3e33552.
Revert "t/TEST: comment some of the <$results> loop vars"

This reverts commit 861aa4195fddf02db2d2d1412c83a273daae9f05.
Revert "t/TEST: add a common timestamp"

This reverts commit 3c8571535150a64cf1163a15106d0f9e57fdd6a7.
Revert "t/TEST: $failure doesnt need to use defined"

This reverts commit 861a58daef615e7ade791b887911ef3caba8c539.
Revert "t/TEST: move our @found out to its real scope"

This reverts commit 448bc2e91e255b2610f23d9fe8092c9143dac28e.