(XXS) RFR: 8189776: Remove dead code in jvm.cpp: force_verify_field_access

[David Holmes]

Trivial dead code cleanup.

webrev: http://cr.openjdk.java.net/~dholmes/8189776/webrev/

Bug: https://bugs.openjdk.java.net/browse/JDK-8189776

JDK-8057777 deleted the old unused JVM_AllocateNewObject interface, 
which was the sole caller of the local force_verify_field_access method. 
However force_verify_field_access was not removed.

Cleaning this up simplifies the nestmate work I'm doing (JEP 181).

Thanks,
David