Coverity analysis defect 77722: Unused value

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      A value assigned to a variable is never used.

      Defect 77722 (STATIC_C)
      Checker UNUSED_VALUE (subcategory none)
      File: /src/third_party/wiredtiger/src/btree/bt_walk.c
      Function __tree_walk_internal
      /src/third_party/wiredtiger/src/btree/bt_walk.c, line: 592
      Overwriting previous write to "couple" with value from "ref".

          descend:			couple = ref;
      

      /src/third_party/wiredtiger/src/btree/bt_walk.c, line: 353
      Assigning value from "couple_orig" to "couple" here, but that stored value is overwritten before it can be used.

          		couple = couple_orig = ref = &btree->root;
      

              Assignee:
              Michael Cahill (Inactive)
              Reporter:
              Coverity Collector User
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                Created:
                Updated:
                Resolved: