mpc83xx: Remove CONFIG_SYS_GPIO{1/2}_PRELIM and related

Last use of CONFIG_SYS_GPIO1_PRELIM was removed by
commit fae2ea5951 ("ppc: Remove MPC8349EMDS board and ARCH_MPC8349
support").

Last use of CONFIG_SYS_GPIO2_PRELIM was removed even before by
commit 6843862342 ("ppc: Remove caddy2 / vme8349 boards")

Those two items were removed from whitelist by
commit 8cca60a2cb ("Kconfig: Remove some symbols from the whitelist")

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Fixes: fae2ea5951 ("ppc: Remove MPC8349EMDS board and ARCH_MPC8349 support")
diff --git a/arch/powerpc/cpu/mpc83xx/cpu_init.c b/arch/powerpc/cpu/mpc83xx/cpu_init.c
index 14df59b..f5cb000 100644
--- a/arch/powerpc/cpu/mpc83xx/cpu_init.c
+++ b/arch/powerpc/cpu/mpc83xx/cpu_init.c
@@ -227,14 +227,6 @@
 	im->sysconf.lblaw[3].bar = CFG_SYS_LBLAWBAR3_PRELIM;
 	im->sysconf.lblaw[3].ar = CFG_SYS_LBLAWAR3_PRELIM;
 #endif
-#ifdef CONFIG_SYS_GPIO1_PRELIM
-	im->gpio[0].dat = CONFIG_SYS_GPIO1_DAT;
-	im->gpio[0].dir = CONFIG_SYS_GPIO1_DIR;
-#endif
-#ifdef CONFIG_SYS_GPIO2_PRELIM
-	im->gpio[1].dat = CONFIG_SYS_GPIO2_DAT;
-	im->gpio[1].dir = CONFIG_SYS_GPIO2_DIR;
-#endif
 }
 
 int cpu_init_r (void)