Revert "SERVER-13741 Adjust test backports for v2.6"

This reverts commit 9b520aab07f8f098561061603efba1b0351d9a35.
Revert "fix"

This reverts commit cb7bad4830a2fef9ef0d3fec423371216ffcfe22.
Revert "SERVER-13741 Migrate remaining tests to use write commands"

This reverts commit 242357a978d73724119fef759f9f30598a1420cc.
Revert "SERVER-13741 Migrate remaining tests to use write commands"

This reverts commit d1152d4bc387f53d2fda7ef5ce640f9a55d0c1d8.
Revert "SERVER-13425 migrate sharding jstest suite to use write commands api"

This reverts commit e34a30fbf39b50ed86d5c9de6a97fc28ad19a466.