[llvm] [RISCV] Remove vmv.s.x and vmv.x.s lmul pseudo variants (PR #71501)

[Luke Lau via llvm-commits]

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@@ -7420,11 +7414,6 @@ foreach fvti = AllFloatVectors in {
                (fvti.Vector $rs1),
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lukel97 wrote:

We don't, I originally removed it but added it back in as per @preames suggestion https://github.com/llvm/llvm-project/pull/71501#discussion_r1392997610 (looks like GitHub isn't showing the comment inline anymore though 😬)

https://github.com/llvm/llvm-project/pull/71501