But if you concatenate the cells in that row into that helper cell, then that
cell won't be blank. It'll contain the formula that concatenates the other
cells.
Applying Data|filter|autofilter and filtering on just the blank cells and
deleting those visible rows would work nicely though.
Or you could use this formula, too:
=counta(a1:x1)
Then filter on that column to show the 0's and delete those visible rows.