Remove superfluous calls to set_debug_name

[jherico]

Description

As mentioned in the linked issue, the move constructor and move assignment operator only need to set the member variable debug_name. They do not need to call set_debug_name on the handle again, because that would have already happened when the debug name was first set in the original object, with the same handle value.

Fixes #988

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• [X] I have used existing framework/helper functions where possible
• [X] My changes do not add any regressions
• [ ] I have tested every sample to ensure everything runs correctly

• [X] This PR describes the scope and expected impact of the changes I am making

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[marty-johnson59]

Merging - 3 approvals