arm: shmobile_defconfig: Drop individual Renesas SoC entries

ARCH_RENESAS is already enabled in shmobile_defconfig, which ensures that
all ARM32 Renesas SoCs are enabled by default. As a result, explicitly
listing individual Renesas SoC entries is redundant. Remove these entries
to simplify the configuration.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20250401090133.68146-4-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Author: prabhakarlad

arch/arm/configs/shmobile_defconfig

@@ -195,25 +195,6 @@ CONFIG_RCAR_DMAC=y
 CONFIG_RENESAS_USB_DMAC=y
 CONFIG_RZ_DMAC=y
 # CONFIG_IOMMU_SUPPORT is not set
-CONFIG_ARCH_EMEV2=y
-CONFIG_ARCH_R8A7794=y
-CONFIG_ARCH_R8A7779=y
-CONFIG_ARCH_R8A7790=y
-CONFIG_ARCH_R8A7778=y
-CONFIG_ARCH_R8A7793=y
-CONFIG_ARCH_R8A7791=y
-CONFIG_ARCH_R8A7792=y
-CONFIG_ARCH_R8A7740=y
-CONFIG_ARCH_R8A73A4=y
-CONFIG_ARCH_R7S72100=y
-CONFIG_ARCH_R7S9210=y
-CONFIG_ARCH_R8A77470=y
-CONFIG_ARCH_R8A7745=y
-CONFIG_ARCH_R8A7742=y
-CONFIG_ARCH_R8A7743=y
-CONFIG_ARCH_R8A7744=y
-CONFIG_ARCH_R9A06G032=y
-CONFIG_ARCH_SH73A0=y
 CONFIG_IIO=y
 CONFIG_AK8975=y
 CONFIG_PWM=y