[dif] Remove unecessary extern guards around includes
Signed-off-by: Miguel Young de la Sota <mcyoung@google.com>
diff --git a/sw/device/tests/dif/dif_i2c_unittest.cc b/sw/device/tests/dif/dif_i2c_unittest.cc
index 961cf8e..ced63fd 100644
--- a/sw/device/tests/dif/dif_i2c_unittest.cc
+++ b/sw/device/tests/dif/dif_i2c_unittest.cc
@@ -2,19 +2,18 @@
// Licensed under the Apache License, Version 2.0, see LICENSE for details.
// SPDX-License-Identifier: Apache-2.0
+#include "sw/device/lib/dif/dif_i2c.h"
+
#include <cstring>
#include <limits>
#include <ostream>
-extern "C" {
-#include "sw/device/lib/dif/dif_i2c.h"
-#include "i2c_regs.h" // Generated.
-} // extern "C"
-
#include "gtest/gtest.h"
#include "sw/device/lib/base/mmio.h"
#include "sw/device/lib/testing/mock_mmio.h"
+#include "i2c_regs.h" // Generated.
+
// We define global namespace == and << to make `dif_i2c_timing_params_t` work
// nicely with EXPECT_EQ.
bool operator==(dif_i2c_timing_params_t a, dif_i2c_timing_params_t b) {
