Revert "Modify zsql method so that all mvts are selected in stock table even if they don't have source_section or destination_section"

This reverts commit 87bc3ad567c1d0f57e4e1d9adf74656b1f5c88f7.
Revert "Modify zsql method so that movements without source or destination can be selected in stock table"

This reverts commit 197cf9432d86f9354fec42e5894ad28dd80cfb45.