spi: pxa2xx: Remove empty function pxa2xx_spi_dma_resume()

This was leftover from the legacy pxa2xx DMA implementation and not needed
anymore so remove it.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
3 files changed