In WT-14030, the __wt_session_set_last_error function was updated to no longer overwrite errors that had been stored at a previous point in the current API call.

As a consequence there are several extra checks that can now be safely removed, since they aim to accomplish the same thing, for example:

Definition of Done

This ticket will be considered done after all similar checks for a previously stored error (located before a call to __wt_session_set_last_error/WT_RET_SUB/WT_ERR_SUB) have been removed.