spi: spi-pxa2xx: remove legacy PXA DMA bits

Generic DMA support was already implemented by commit cd7bed003404
("spi/pxa2xx: break out the private DMA API usage into a separate file")
which moved all the legacy PXA DMA implementation code into its own
file.

With generic DMA available for PXA, we can now just trash this file.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Mark Brown <broonie@linaro.org>
[respin after pxa dmaengine support upstream]
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index 198f96b..c82a3d1 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -393,16 +393,9 @@
 	help
 	  This selects a driver for the PPC4xx SPI Controller.
 
-config SPI_PXA2XX_PXADMA
-	bool "PXA2xx SSP legacy PXA DMA API support"
-	depends on SPI_PXA2XX && ARCH_PXA
-	help
-	  Enable PXA private legacy DMA API support. Note that this is
-	  deprecated in favor of generic DMA engine API.
-
 config SPI_PXA2XX_DMA
 	def_bool y
-	depends on SPI_PXA2XX && !SPI_PXA2XX_PXADMA
+	depends on SPI_PXA2XX
 
 config SPI_PXA2XX
 	tristate "PXA2xx SSP SPI master"