Revert "[mlir][memref] Fix offset update in emulating narrow type for strided memref (llvm#67714)"

This reverts commit 35ec6ea.

Breaks downstream narrow type execution tests.

Author: stellaraccident

mlir/lib/Dialect/MemRef/Transforms/EmulateNarrowType.cpp

@@ -272,12 +272,6 @@ void memref::populateMemRefNarrowTypeEmulationConversions(
 
         StridedLayoutAttr layoutAttr;
         if (offset != 0) {
-          // Check if the number of bytes are a multiple of the loadStoreWidth
-          // and if so, divide it by the loadStoreWidth to get the offset.
-          if ((offset * width) % loadStoreWidth != 0)
-            return std::nullopt;
-          offset = (offset * width) / loadStoreWidth;
-
           layoutAttr = StridedLayoutAttr::get(ty.getContext(), offset,
                                               ArrayRef<int64_t>{1});
         }