apalis-tk1: avoid save environment unasked

U-Boot should never save the environment unasked.
This also avoids storing broken fdt_module to flash.

Signed-off-by: Denys Drozdov <denys.drozdov@toradex.com>
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
diff --git a/board/toradex/apalis-tk1/apalis-tk1.c b/board/toradex/apalis-tk1/apalis-tk1.c
index 2769b54..ccf665b 100644
--- a/board/toradex/apalis-tk1/apalis-tk1.c
+++ b/board/toradex/apalis-tk1/apalis-tk1.c
@@ -71,9 +71,6 @@
 			env_set("fdt_module", FDT_MODULE_V1_0);
 			printf("patching fdt_module to " FDT_MODULE_V1_0
 			       " for older V1.0 and V1.1 HW\n");
-#ifndef CONFIG_ENV_IS_NOWHERE
-			env_save();
-#endif
 		}
 
 		/* activate USB power enable GPIOs */