rcar_gen3: drivers: pfc: H3: Drop pfc_reg_write() forward declaration

There's no point in having forward declaration just before the function
itself, drop it. No functional change.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Change-Id: I56125389fa6fe3ae169cacdb0e4b60376f0a6489

drivers/staging/renesas/rcar/pfc/H3/pfc_init_h3_v1.c

@@ -553,8 +553,6 @@
 #define MOD_SEL2_VIN4_A		((uint32_t)0U << 0U)
 #define MOD_SEL2_VIN4_B		((uint32_t)1U << 0U)
 
-static void pfc_reg_write(uint32_t addr, uint32_t data);
-
 static void pfc_reg_write(uint32_t addr, uint32_t data)
 {
 	mmio_write_32(PFC_PMMR, ~data);

drivers/staging/renesas/rcar/pfc/H3/pfc_init_h3_v2.c

@@ -570,8 +570,6 @@
 #define MOD_SEL2_VIN4_A		((uint32_t)0U << 0U)
 #define MOD_SEL2_VIN4_B		((uint32_t)1U << 0U)
 
-static void pfc_reg_write(uint32_t addr, uint32_t data);
-
 static void pfc_reg_write(uint32_t addr, uint32_t data)
 {
 	mmio_write_32(PFC_PMMR, ~data);