hg: jdk/sandbox: 8241419: Remove unused InterfaceSupport::_number_of_calls

[chris.hegarty at oracle.com]

Changeset: ff19fd7429bd
Author:    yzhang
Date:      2020-03-26 14:46 +0800
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/ff19fd7429bd

8241419: Remove unused InterfaceSupport::_number_of_calls
Reviewed-by: dholmes
Contributed-by: jie.he at arm.com

! src/hotspot/share/runtime/interfaceSupport.cpp
! src/hotspot/share/runtime/interfaceSupport.inline.hpp