RFR: 8244224: Implementation of JEP 381: Remove the Solaris and SPARC Ports (security)

[Weijun Wang]

> 
>> 
>> * Get confirmation if https://bugs.openjdk.java.net/browse/JDK-8039280 is enough to cover test/jdk/sun/security/provider/PolicyParser/PrincipalExpansionError.java
> 
> The test has been neglected for a long time, but I think in theory the SolarisPrincipal can be substituted into UnixPrincipal. Let's keep it.

Please just s/Solaris/Unix/ in PrincipalExpansionError.java and PrincipalExpansionError.policy now.

Thanks,
Max