lapack/gonum: remove unused assignment to local variable in Dlasq4
See for this
change done in the reference LAPACK.
@@ -71,7 +71,6 @@ func (impl Implementation) Dlasq4(i0, n0 int, z []float64, pp int, n0in int, dmi
np = nn - 9
} else {
np = nn - 2*pp
- b2 = z[np-2]
gam = dn1
if z[np-4] > z[np-2] {
return tau, ttype, g
