Revert "Re #9919 New doc for ILL Reflectometry"

This reverts commit c5509dcea0c2f866f6d1fdb2c3cf4030bc24f531.
Revert "Re #9919 New doc for Setup ILL SANS Reduction"

This reverts commit c4cdb935fab2ad2224060b2c2c364809ea262ba9.
Revert "Re #9919 New doc for Load ILL SANS"

This reverts commit a2f4fd7f906c2ad8847623b1e25072eb77277bcb.
Revert "Re #9919 New doc for Load ILL SANS"

This reverts commit 190688f06097b56b058a4d9db35174b18b585f54.
Revert "Re #9919 New doc for LoadILLIndirect"

This reverts commit 5d035410ece8c374ba1f3d8edf53f54772b1d3b2.
Revert "Re #9919 New doc for LoadLLB"

This reverts commit bb61bf4145642780fb37bcccaeffbc5924a98388.
Revert "Re #9919 New doc for LoadILLAscii"

This reverts commit c078ba81f75695ba8f45b48f8e5c0402f61de698.
Revert "Re #9919 New doc for LoadILL"

This reverts commit 001206defe5f61ba22116d900e6838bd94a74575.