[llvm] [MachineVerifier](NFC)(TestOnly) Canonicalise top-level MachineVerifier tests (PR #172527)

[Matt Arsenault via llvm-commits]

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@@ -38,15 +32,10 @@ body:             |
 ...
 
 ---
-name:            test_copy_virtual_to_physical
-legalized:       true
-regBankSelected: false
-selected:        false
-tracksRegLiveness: true
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arsenm wrote:

tracksRegLiveness is annoyingly false by default (I really don't understand why this is an option). For now I'd leave it for any test that has a physical register reference in it 

https://github.com/llvm/llvm-project/pull/172527