spi: Zap lpc32xx_ssp driver-related code

lpc32xx_ssp driver is deprecated, no active updates
and no board user, hence dropped the same.

Cc: Vladimir Zapolskiy <vz@mleia.com>
Cc: Albert ARIBAUD <albert.aribaud@3adev.fr>
Cc: Tom Rini <trini@konsulko.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>

include/configs/devkit3250.h

@@ -54,11 +54,6 @@
  */
 #define CONFIG_LPC32XX_GPIO
 
-/*
- * SSP/SPI
- */
-#define CONFIG_LPC32XX_SSP_TIMEOUT	100000
-
 /*
  * Ethernet
  */

include/configs/work_92105.h

@@ -104,11 +104,6 @@
 
 #define CONFIG_LPC32XX_GPIO
 
-/*
- * SSP/SPI/DISPLAY
- */
-
-#define CONFIG_LPC32XX_SSP_TIMEOUT 100000
 /*
  * Environment
  */