Sony will not release any more phones in its Xperia Z, M, E or C lines and will instead focus on the Xperia X range.A Sony executive has confirmed to TechRadar the focus for the Japanese company will be on the Xperia X line, which now features the Xperia XZ and Xperia X Compact alongside the Xperia X, X Performance, XA and XA Ultra.Sony Mobile EVP of...