pinctrl: renesas: r8a7778: Remove unused PORT_GP_PUP_1() macro

The last user was removed in commit dd1f760 ("pinctrl: sh-pfc:
r8a7778: Use common PORT_GP_CFG_27() macro").

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/129147ac57f5e931cc7108db0a6483b803a1b8f4.1619785375.git.geert+renesas@glider.be

drivers/pinctrl/renesas/pfc-r8a7778.c

@@ -18,9 +18,6 @@
 
 #include "sh_pfc.h"
 
-#define PORT_GP_PUP_1(bank, pin, fn, sfx)	\
-	PORT_GP_CFG_1(bank, pin, fn, sfx, SH_PFC_PIN_CFG_PULL_UP)
-
 #define CPU_ALL_GP(fn, sfx)		\
 	PORT_GP_CFG_32(0, fn, sfx, SH_PFC_PIN_CFG_PULL_UP),		\
 	PORT_GP_CFG_32(1, fn, sfx, SH_PFC_PIN_CFG_PULL_UP),		\