RFR JDK-8227024 : Remove the deprecated javax.security.cert APIs

[Xuelei Fan]

Hi,

Could I get the following update reviewed?

CSR: https://bugs.openjdk.java.net/browse/JDK-8227395
Webrev: http://cr.openjdk.java.net/~xuelei/8227024/webrev.00/

The legacy javax.security.cert APIs and the dependent were initially 
deprecated in Java SE 9 and marked for removal in Java SE 13. 
Applications should use the java.security.cert APIs for now.  This is a 
request to remove the deprecated javax.security.cert APIs.

The use of the legacy APIs should be rare now.  But please let me know 
if you have concerns before March 19, 2019.

Thanks & Regards,
Xuelei