Fix lint

[Tracking bug 23893]

[git-p4: depot-paths = "//depot/software/common/ConsensusCore/": change = 127886]
Fix build

[Tracking bug 23893]

[git-p4: depot-paths = "//depot/software/common/ConsensusCore/": change = 127922]
No longer noncopyable

[Tracking bug 23893]

[git-p4: depot-paths = "//depot/software/common/ConsensusCore/": change = 128277]