spi: davinci: Drop non-dm code

Now all boards which are using davinci SPI driver
have moved to SPL_DM so drop the unneeded non-dm code.

Cc: Adam Ford <aford173@gmail.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Adam Ford <aford173@gmail.com> #da850-evm
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index d32858b..09b9cb1 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -119,6 +119,12 @@
           Enable the ColdFire SPI driver. This driver can be used on
           some m68k SoCs.
 
+config DAVINCI_SPI
+	bool "Davinci & Keystone SPI driver"
+	depends on ARCH_DAVINCI || ARCH_KEYSTONE
+	help
+	  Enable the Davinci SPI driver
+
 config DESIGNWARE_SPI
 	bool "Designware SPI driver"
 	help
@@ -405,12 +411,6 @@
 	  access the SPI interface and SPI NOR flash on platforms embedding
 	  this Freescale eSPI IP core.
 
-config DAVINCI_SPI
-	bool "Davinci & Keystone SPI driver"
-	depends on ARCH_DAVINCI || ARCH_KEYSTONE
-	help
-	  Enable the Davinci SPI driver
-
 config SH_QSPI
 	bool "Renesas Quad SPI driver"
 	help