tegra: remove support for UART SPI switch

This feature was only used for tegra20 seaboard that had a pinmux
conflict on the SPI pins.  These boards were never manufactured, so
remove this support to clean up SPI driver.

Signed-off-by: Allen Martin <amartin@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
diff --git a/board/nvidia/seaboard/seaboard.c b/board/nvidia/seaboard/seaboard.c
index e581fdd..498e513 100644
--- a/board/nvidia/seaboard/seaboard.c
+++ b/board/nvidia/seaboard/seaboard.c
@@ -31,7 +31,7 @@
 #include <asm/gpio.h>
 
 /* TODO: Remove this code when the SPI switch is working */
-#if !defined(CONFIG_SPI_UART_SWITCH) && (CONFIG_MACH_TYPE != MACH_TYPE_VENTANA)
+#if (CONFIG_MACH_TYPE != MACH_TYPE_VENTANA)
 void gpio_early_init_uart(void)
 {
 	/* Enable UART via GPIO_PI3 (port 8, bit 3) so serial console works */