configs: evb-ast2600-spl: Remove U-Boot MMC raw sector

The raw sector of U-Boot image is not used in this SPI-booting
based defconfig. Remove it to avoid confusion.

Signed-off-by: Chia-Wei Wang <chiawei_wang@aspeedtech.com>
Change-Id: I3e13176f7c170e67e3b4a8d7ac2e80729add9852

configs/evb-ast2600-spl_defconfig

@@ -41,8 +41,6 @@ CONFIG_SPL_BOARD_INIT=y
 CONFIG_SPL_SYS_MALLOC_SIMPLE=y
 CONFIG_SPL_STACK_R=y
 CONFIG_SPL_SEPARATE_BSS=y
-CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR=y
-CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR=0x80
 CONFIG_SPL_SHA1_SUPPORT=y
 CONFIG_SPL_SHA256_SUPPORT=y
 CONFIG_SPL_SHA384_SUPPORT=y
@@ -101,7 +99,6 @@ CONFIG_DM_I2C=y
 CONFIG_SYS_I2C_ASPEED=y
 CONFIG_MISC=y
 CONFIG_ASPEED_AHBC=y
-CONFIG_ASPEED_H2X=y
 CONFIG_ASPEED_DP=y
 CONFIG_DM_MMC=y
 CONFIG_SPL_MMC_TINY=y