ApprovalCopier: Remove option to exclude approvals from copying
ApprovalCopier: Remove option to exclude approvals from copying

This option is not used. The only caller of getForPatchSet(ChangeNotes,
PatchSet.Id, RevWalk rw, Config repoConfig, Iterable<PatchSetApproval>)
always passed in an empty collection for the approvals that shouldn't be
copied. Removing this option simplifies the code and makes it more
readable.

Signed-off-by: Edwin Kempin <d43fb6c98c97e553b671ed9a9318100f1de386e7@google.com>
Change-Id: I76378822b0a8eddc1acea950e9c68bc6428ac672

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