diff --git a/isxerrors/errors.go b/isxerrors/errors.go
deleted file mode 100644
index 51e71fbd..00000000
--- a/isxerrors/errors.go
+++ /dev/null
@@ -1,13 +0,0 @@
-package isxerrors
-
-import "golang.org/x/xerrors"
-
-// Wraps xerrors.Errorf but returns nil if err is nil
-func Errorf(format string, args ...interface{}) error {
-	for i := range args {
-		if _, ok := args[i].(error); ok {
-			return xerrors.Errorf(format, args...)
-		}
-	}
-	return nil
-}
diff --git a/isxerrors/errors_test.go b/isxerrors/errors_test.go
deleted file mode 100644
index fdc86470..00000000
--- a/isxerrors/errors_test.go
+++ /dev/null
@@ -1,17 +0,0 @@
-package isxerrors
-
-import (
-	"errors"
-	"testing"
-)
-
-func TestErrorf(t *testing.T) {
-	err := Errorf("no error: %w", nil)
-	if err != nil {
-		t.Errorf("expected no error to be returned. got: %s", err)
-	}
-	err = Errorf("no error: %w", errors.New("isxerrors"))
-	if err == nil {
-		t.Errorf("expected error. got none")
-	}
-}