Remove UT code, not supported on this branch

To be backported to 2018-patches stripping24r2-28r2-patches 2017-patches 2016-patches reco15-patches, hlt2016-patches stripping21-patches stripping21-firstpass-patches

Goes with Brunel!932 (merged)

added all-slots cleanup labels

mentioned in merge request LHCb!2305 (merged)

• [2020-01-07 00:10] Validation started with lhcb-run2-patches-dev4#198
• [2020-01-07 00:12] Validation started with lhcb-run2-patches#629
• [2020-01-09 00:09] Validation started with lhcb-run2-patches#631
• [2020-01-09 00:12] Validation started with lhcb-run2-patches-dev4#200
• [2020-01-10 00:07] Validation started with lhcb-run2-patches-dev4#201
• [2020-01-10 00:14] Validation started with lhcb-run2-patches#632
• [2020-01-11 00:07] Validation started with lhcb-run2-patches-dev4#202
• [2020-01-11 00:08] Validation started with lhcb-run2-patches#633
• [2020-01-12 00:06] Validation started with lhcb-run2-patches#634
• [2020-01-12 00:07] Validation started with lhcb-run2-patches-dev4#203

removed all-slots label

added 1 commit

• 194473db - Clean up a few more uses of UT

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added 1 commit

• 416745d0 - fix typo

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added 1 commit

• 4069a240 - fix typo

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added 1 commit

• 6f38d370 - Fixed formatting

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added all-slots label

changed the description

mentioned in merge request Brunel!932 (merged)

changed the description

merged

mentioned in commit 7d500606

removed all-slots label

mentioned in commit Brunel@6593c5e2

mentioned in commit Brunel@02f0197a

mentioned in commit Brunel@2e6f8ee2