blk: Drop unnecessary CONFIG_SPL_LEGACY_BLOCK in defconfigs

This is defined automatically when needed, so drop it from the few
defconfig files that define it manually.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/axm_defconfig b/configs/axm_defconfig
index 293052b..b1e0090 100644
--- a/configs/axm_defconfig
+++ b/configs/axm_defconfig
@@ -80,7 +80,6 @@
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_SPL_DM=y
 CONFIG_BLK=y
-CONFIG_SPL_LEGACY_BLOCK=y
 CONFIG_CLK=y
 CONFIG_CLK_AT91=y
 CONFIG_AT91_GPIO=y
diff --git a/configs/bcm968380gerg_ram_defconfig b/configs/bcm968380gerg_ram_defconfig
index 55d7426..284fa2f 100644
--- a/configs/bcm968380gerg_ram_defconfig
+++ b/configs/bcm968380gerg_ram_defconfig
@@ -42,7 +42,6 @@
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 # CONFIG_NET is not set
 # CONFIG_DM_DEVICE_REMOVE is not set
-CONFIG_SPL_LEGACY_BLOCK=y
 CONFIG_BCM6345_GPIO=y
 CONFIG_LED=y
 CONFIG_LED_BCM6328=y
diff --git a/configs/gardena-smart-gateway-mt7688_defconfig b/configs/gardena-smart-gateway-mt7688_defconfig
index fdfab14..992e850 100644
--- a/configs/gardena-smart-gateway-mt7688_defconfig
+++ b/configs/gardena-smart-gateway-mt7688_defconfig
@@ -78,7 +78,6 @@
 CONFIG_NET_RANDOM_ETHADDR=y
 CONFIG_SPL_DM=y
 # CONFIG_DM_DEVICE_REMOVE is not set
-CONFIG_SPL_LEGACY_BLOCK=y
 CONFIG_BOOTCOUNT_LIMIT=y
 CONFIG_LED=y
 CONFIG_LED_BLINK=y
diff --git a/configs/nsim_hs38_defconfig b/configs/nsim_hs38_defconfig
index 22690e7..740de7a 100644
--- a/configs/nsim_hs38_defconfig
+++ b/configs/nsim_hs38_defconfig
@@ -30,7 +30,6 @@
 CONFIG_USE_BOOTFILE=y
 CONFIG_BOOTFILE="uImage"
 CONFIG_BLK=y
-CONFIG_SPL_LEGACY_BLOCK=y
 CONFIG_DM_ETH=y
 CONFIG_DM_SERIAL=y
 CONFIG_DEBUG_UART_SHIFT=2
diff --git a/configs/qemu-ppce500_defconfig b/configs/qemu-ppce500_defconfig
index 4ef0157..79cfa82 100644
--- a/configs/qemu-ppce500_defconfig
+++ b/configs/qemu-ppce500_defconfig
@@ -40,7 +40,6 @@
 CONFIG_DM=y
 CONFIG_SIMPLE_BUS_CORRECT_RANGE=y
 CONFIG_BLK=y
-CONFIG_SPL_LEGACY_BLOCK=y
 CONFIG_LBA48=y
 CONFIG_CHIP_SELECTS_PER_CTRL=0
 CONFIG_MPC8XXX_GPIO=y