Clean up Switching tests #3156

Job	Run time
ubuntu-clang-deprecated Debug	21m 56s
ubuntu-clang-deprecated Release	22m 36s
ubuntu-clang-quaternions Debug	22m 24s
ubuntu-clang-quaternions Release	22m 51s
ubuntu-clang-tbb Debug	22m 56s
ubuntu-clang-tbb Release	24m 39s
ubuntu-clang-cayleymap Debug	21m 55s
ubuntu-clang-cayleymap Release	23m 10s
ubuntu-clang-system-libs Debug	21m 21s
ubuntu-clang-system-libs Release	23m 21s
ubuntu-no-boost Debug	22m 4s
ubuntu-no-boost Release	22m 51s
ubuntu-no-unstable Debug	18m 3s
ubuntu-no-unstable Release	18m 26s
	5h 8m 33s

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