[SCCP] Try to follow the DRY principle, use `OpSt`.
[SCCP] Try to follow the DRY principle, use `OpSt`.

Thanks to Eli Friedman for pointing out in his post-commit review!

git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@275084 91177308-0d34-0410-b5e6-96231b3b80d8

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