Merge pull request #127739 from maksimkim/maksimkim/apim/nosymmetricalgcreate

[apim] Remove support for parameterless SymmetricAlgorithm.Create()

Author: ktoliver

articles/api-management/api-management-policy-expressions.md

@@ -142,7 +142,7 @@ The following table lists the .NET Framework types and members allowed in policy
 |`System.Security.Cryptography.SHA384Managed`|All|
 |`System.Security.Cryptography.SHA512`|All|
 |`System.Security.Cryptography.SHA512Managed`|All|
-|`System.Security.Cryptography.SymmetricAlgorithm`|All|
+|`System.Security.Cryptography.SymmetricAlgorithm`|All except parameterless `Create()`|
 |`System.Security.Cryptography.X509Certificates.PublicKey`|All|
 |`System.Security.Cryptography.X509Certificates.RSACertificateExtensions`|All|
 |`System.Security.Cryptography.X509Certificates.X500DistinguishedName`|`Name`|