[tosa] : Re-enable PR #135429 with ASAN fix (#135560)
Removed the calls to `sizeOp` after replacing `SliceOp`:
```
// Remove const_shape size op when it no longer has use point.
Operation *sizeConstShape = sliceOp.getSize().getDefiningOp();
```
Turns out as part of canonicalization, trivially dead ops are removed
anyway, so the above piece of code isn't actually needed.