arm: atmel: at91sam9x5: cleanup unneeded undef

remove unneeded #undef for at91sam9x5ek board.

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>

include/configs/at91sam9x5ek.h

@@ -44,7 +44,6 @@
 #define LCD_BPP			LCD_COLOR16
 #define LCD_OUTPUT_BPP		24
 #define CONFIG_LCD_LOGO
-#undef LCD_TEST_PATTERN
 #define CONFIG_LCD_INFO
 #define CONFIG_LCD_INFO_BELOW_LOGO
 #define CONFIG_SYS_WHITE_ON_BLACK
@@ -244,8 +243,4 @@
  */
 #define CONFIG_SYS_MALLOC_LEN		(512 * 1024 + 0x1000)
 
-#ifdef CONFIG_USE_IRQ
-#error CONFIG_USE_IRQ not supported
-#endif
-
 #endif