[clang] [llvm] Remove experimental from Vector Crypto extensions (PR #69000)

[Kito Cheng via cfe-commits]

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@@ -106,6 +106,8 @@ static const RISCVSupportedExtension SupportedExtensions[] = {
 
     {"zdinx", RISCVExtensionVersion{1, 0}},
 
+    {"zexperimental", RISCVExtensionVersion{1, 0}},
+
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kito-cheng wrote:

I guess we don't really need this dummy extension in RISCVISAInfo?

https://github.com/llvm/llvm-project/pull/69000