delete minor unreachable code caused by t.Fatal

Signed-off-by: Abirdcfly <[email protected]>

Author: Abirdcfly

reloader/reloader_test.go

@@ -43,7 +43,6 @@ func TestNoRead(t *testing.T) {
 	_, err := New(f.Name(), noop, testErrCb(t))
 	if err == nil {
 		t.Fatalf("Expected New to return error when permission denied.")
-		readFile = oldReadFile
 	}
 	readFile = oldReadFile
 }