JIT: Redundant range check

https://godbolt.org/z/KMPGzdnv5

```csharp
public static string? TryUnwrapPrefix(string prefix, string path)
{
if (prefix == "/")
return path;

if (path == prefix)
return "/";

if ((uint)prefix.Length < (uint)path.Length)
if (path.StartsWith(prefix, StringComparison.Ordinal))
if (path[prefix.Length] == '/')
return new string(path.AsSpan(prefix.Length));

return null;
}
```

Compiled with an unnecessary range check.

If one of the initial `if` statements is removed or the `(uint)prefix.Length < (uint)path.Length` check is moved after `path.StartsWith` then the JIT correctly eliminates the redundant bounds check.

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**This optimization works as expected in .NET 8-10**