smegw01: Remove misuse of CONFIG_ENV_IS_NOWHERE

When using a list of writeable variables, the initial values come
from the built-in default environment since commit 5ab81058364b ("env:
Complete generic support for writable list").

Remove unnecessary misuse of CONFIG_ENV_IS_NOWHERE as default environment.

Based on the fix done by commit b16fd7f75f6d ("imx6q: acc: Remove misuse
of env is nowhere driver").

Signed-off-by: Eduard Strehlau <eduard@lionizers.com>
Signed-off-by: Fabio Estevam <festevam@denx.de>
diff --git a/board/storopack/smegw01/smegw01.c b/board/storopack/smegw01/smegw01.c
index 7b2c50a..345191b 100644
--- a/board/storopack/smegw01/smegw01.c
+++ b/board/storopack/smegw01/smegw01.c
@@ -111,18 +111,3 @@
 	return part;
 }
 
-enum env_location env_get_location(enum env_operation op, int prio)
-{
-	if (op == ENVOP_SAVE || op == ENVOP_ERASE)
-		return ENVL_MMC;
-
-	switch (prio) {
-	case 0:
-		return ENVL_NOWHERE;
-
-	case 1:
-		return ENVL_MMC;
-	}
-
-	return ENVL_UNKNOWN;
-}
diff --git a/configs/smegw01_defconfig b/configs/smegw01_defconfig
index 5cfd3d2..13665ec 100644
--- a/configs/smegw01_defconfig
+++ b/configs/smegw01_defconfig
@@ -48,7 +48,6 @@
 CONFIG_CMD_FS_GENERIC=y
 CONFIG_OF_CONTROL=y
 CONFIG_ENV_OVERWRITE=y
-CONFIG_ENV_IS_NOWHERE=y
 CONFIG_SYS_REDUNDAND_ENVIRONMENT=y
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_SYS_MMC_ENV_DEV=1