Remove not used functions from xos package

x/xos/env.go

@@ -1,20 +1,10 @@
 package xos
 
 import (
-	"os"
 	"sort"
 	"strings"
 )
 
-// GetenvDefault retrieves the value of the environment variable named by the key.
-// It returns the value, which will be set to fallback if the variable is empty.
-func GetenvDefault(key, fallback string) string {
-	if val := os.Getenv(key); val != "" {
-		return val
-	}
-	return fallback
-}
-
 // EnvMapToSlice transform a map of key value to a slice of env in the form "key=value".
 // Env vars are sorted by names to get an accurate order while testing.
 func EnvMapToSlice(values map[string]string) []string {

x/xos/env_test.go

@@ -1,28 +1,11 @@
 package xos
 
 import (
-	"os"
 	"testing"
 
 	"github.com/mesg-foundation/engine/x/xstrings"
 )
 
-func TestGetenvDefault(t *testing.T) {
-	os.Setenv("__TEST_KEY__", "1")
-	for _, tt := range []struct {
-		key      string
-		fallback string
-		expected string
-	}{
-		{"__TEST_KEY__", "0", "1"},
-		{"__TEST_KE1Y__", "0", "0"},
-	} {
-		if got := GetenvDefault(tt.key, tt.fallback); got != tt.expected {
-			t.Errorf("GetenvDefault(%q, %q) got %s, want %s", tt.key, tt.fallback, got, tt.expected)
-		}
-	}
-}
-
 func TestEnvMapToSlice(t *testing.T) {
 	env := EnvMapToSlice(map[string]string{
 		"a": "1",