tools/env: Don't call env_init() in fw_getenv()

We will only call fw_getenv when the env has already been initialized.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
diff --git a/tools/env/fw_env.c b/tools/env/fw_env.c
index ccaa889..2c607bf 100644
--- a/tools/env/fw_env.c
+++ b/tools/env/fw_env.c
@@ -255,9 +255,6 @@
 {
 	char *env, *nxt;
 
-	if (fw_env_open())
-		return NULL;
-
 	for (env = environment.data; *env; env = nxt + 1) {
 		char *val;