sandbox: drop CONFIG_SYS_RELOC_GD_ENV_ADDR

As we discussed in [1], this option is not needed for sandbox build.

[1] https://lists.denx.de/pipermail/u-boot/2020-February/400182.html

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/sandbox64_defconfig b/configs/sandbox64_defconfig
index c1237ea..a3f049e 100644
--- a/configs/sandbox64_defconfig
+++ b/configs/sandbox64_defconfig
@@ -80,7 +80,6 @@
 CONFIG_OF_LIVE=y
 CONFIG_OF_HOSTFILE=y
 CONFIG_DEFAULT_DEVICE_TREE="sandbox64"
-CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_NETCONSOLE=y
 CONFIG_IP_DEFRAG=y
 CONFIG_REGMAP=y
diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig
index 9445d78..c09bf33 100644
--- a/configs/sandbox_defconfig
+++ b/configs/sandbox_defconfig
@@ -89,7 +89,6 @@
 CONFIG_OF_LIVE=y
 CONFIG_OF_HOSTFILE=y
 CONFIG_DEFAULT_DEVICE_TREE="sandbox"
-CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_NETCONSOLE=y
 CONFIG_IP_DEFRAG=y
 CONFIG_REGMAP=y
diff --git a/configs/sandbox_flattree_defconfig b/configs/sandbox_flattree_defconfig
index a4a7ae8..21f9047 100644
--- a/configs/sandbox_flattree_defconfig
+++ b/configs/sandbox_flattree_defconfig
@@ -63,7 +63,6 @@
 CONFIG_OF_CONTROL=y
 CONFIG_OF_HOSTFILE=y
 CONFIG_DEFAULT_DEVICE_TREE="sandbox"
-CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_NETCONSOLE=y
 CONFIG_IP_DEFRAG=y
 CONFIG_REGMAP=y
diff --git a/configs/sandbox_spl_defconfig b/configs/sandbox_spl_defconfig
index 945fe54..fc8b26e 100644
--- a/configs/sandbox_spl_defconfig
+++ b/configs/sandbox_spl_defconfig
@@ -79,7 +79,6 @@
 CONFIG_OF_HOSTFILE=y
 CONFIG_DEFAULT_DEVICE_TREE="sandbox"
 CONFIG_SPL_OF_PLATDATA=y
-CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_NETCONSOLE=y
 CONFIG_IP_DEFRAG=y
 CONFIG_SPL_DM=y