Remove unused file includes/OutputPage.php

Change-Id: I259a51e619a2c9ac18590129ff4a0d6b2736103b
Remove unused Workflow lockState

It's unused & broken in its current form:
* type is declared (and used) as array, but set to int (0) somewhere
* array doesn't undergo transformation before going to storage, which fails

Change-Id: I282bd4205e50535cc95aa659716e923ab6bfe4b4
Merge "Remove unused file includes/OutputPage.php"
Merge "Remove unused Workflow lockState"