Fix replace non working deleteByRetrievedFrom function with working delete function

[obasekiosa]

Description

Replace all occurances of QueuedWorkflowRepository's deleteByRetrievedFrom delete method which performs a read operation(Bug)
with auto-generated deleteByTempRepresentation_RetrievedFrom method.

Also, the current delete method's name convention does not allow for auto-generation of the required delete method.

Motivation and Context

Since the deleteByRetrievedFrom method does not perform a delete operation. queued workflows are never deleted.

Fixes #320
Also a possible fix for Issue #212

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.

[mr-c]

I am so happy to see this, thank you! Can you please add a test to confirm your fix?

[obasekiosa]

I am so happy to see this, thank you! Can you please add a test to confirm your fix?

Alright, I'll start working on that now.