ARM: rmobile: Zap rmobile_sysinfo on Gen3

Since checkboard() is gone, rmobile_sysinfo is also pointless on Gen3.
Furthermore, nuke ad-hoc CONFIG_RCAR_BOARD_STRING which is also dead.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>

board/renesas/salvator-x/salvator-x.c

@@ -142,10 +142,6 @@ int dram_init_banksize(void)
 	return 0;
 }
 
-const struct rmobile_sysinfo sysinfo = {
-	CONFIG_RCAR_BOARD_STRING
-};
-
 #define RST_BASE	0xE6160000
 #define RST_CA57RESCNT	(RST_BASE + 0x40)
 #define RST_CA53RESCNT	(RST_BASE + 0x44)

board/renesas/ulcb/ulcb.c

@@ -129,7 +129,3 @@ int dram_init_banksize(void)
 #endif
 	return 0;
 }
-
-const struct rmobile_sysinfo sysinfo = {
-	CONFIG_RCAR_BOARD_STRING
-};

include/configs/salvator-x.h

@@ -12,8 +12,6 @@
 
 #undef DEBUG
 
-#define CONFIG_RCAR_BOARD_STRING "Salvator-X"
-
 #include "rcar-gen3-common.h"
 
 /* SCIF */

include/configs/ulcb.h

@@ -12,8 +12,6 @@
 
 #undef DEBUG
 
-#define CONFIG_RCAR_BOARD_STRING "ULCB"
-
 #include "rcar-gen3-common.h"
 
 /* M3 ULCB has 2 banks, each with 1 GiB of RAM */