Remove legacy dependency `System.Security.Cryptography.Algorithms` for `netstandard2.1` target

[OronDF343]

The reference to System.Security.Cryptography.Algorithms should not be required for the netstandard2.1 target. In general, any System.* packages with version 4.3.x are meant for .NET Core 1.x based platforms only. I believe that this dependency can be safely removed, and will clean up the list of installed transient dependencies for modern platforms.

[dvsekhvalnov]

Hey @OronDF343 , thanks for note, i'll double check.