Coverity complaints 104923, 104924, 104925, 104926: https://coverity.corp.mongodb.com/reports.htm#v10632/p10001

The complaint is __wt_schema_get_table_uri() is called to fill in WT_TABLE **tablep, initializes tablep to NULL, fails and returns, leaving tablep set to NULL, and then a subsequent dereference of table will dereference a NULL.