Remove superfluous uses of V_PROMPT macro.

A number of config files define the V_PROMPT macro for the
command-line prompt, only to immediately use that macro to define
CONFIG_SYS_PROMPT, making V_PROMPT entirely superfluous.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
diff --git a/include/configs/apollon.h b/include/configs/apollon.h
index ed14f7a..c1295de 100644
--- a/include/configs/apollon.h
+++ b/include/configs/apollon.h
@@ -185,10 +185,8 @@
 /*
  * Miscellaneous configurable options
  */
-#define	V_PROMPT	"Apollon # "
-
 #define	CONFIG_SYS_LONGHELP	/* undef to save memory */
-#define	CONFIG_SYS_PROMPT	V_PROMPT
+#define	CONFIG_SYS_PROMPT	"Apollon # "
 #define	CONFIG_SYS_CBSIZE	256	/* Console I/O Buffer Size */
 /* Print Buffer Size */
 #define	CONFIG_SYS_PBSIZE	(CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16)