[Nestmates] RFR: 8188796: [Nestmates] LinkResolver::runtime_resolve_special_method has leftover nestmate check

[David Holmes]

bug: https://bugs.openjdk.java.net/browse/JDK-8188796
webrev: http://cr.openjdk.java.net/~dholmes/8188796/webrev/

One of our closed tests picked up a logic error when checking for a 
nestmate access that allowed an errant anonymous class access to slip 
through undetected. Upon further examination the nestmate check is no 
longer needed since we reverted from using invokespecial for nestmate 
accesses. This is an oversight from the fix for JDK-8187360.

Thanks,
David