Refactor Redundant Parameters: XXRequestContext Classes

[seantleonard]

RE Discussion: #190 (comment)

Summary

The parameters HttpVerb and OperationType may be redundant and not both necessary.

Details

Pending more discussion and investigation.

[Aniruddh25]

Pure refactor moved to M2.

[seantleonard]

Closed via #515 which removed HttpVerb from XXRestRequestContext classes.