RFR: 8225068: Remove DocuSign root certificate that is expiring in May 2020

[Rajan Halade]

Please review this patch to remove Keynectis CA certificate from cacerts store.

Webrev: http://cr.openjdk.java.net/~rhalade/8225068/webrev.00/ 
<http://cr.openjdk.java.net/~rhalade/8225068/webrev.00/>

Thanks,
Rajan