[bluetooth] replace to g_free() to free().

According to the bt_adapter_le_get_scan_result_device_name()'s spec

Change-Id: I0e96361d126ffc09e436527526d452fbf55c8751

diff --git a/src/bluetooth/bluetooth_le_device.cc b/src/bluetooth/bluetooth_le_device.cc
index 1bde58eb1c783169a875593cd1bea9d427585708..760b8fc1ecf32deca8d006f83c43e33e4e1a9a9b 100755 (executable)
--- a/src/bluetooth/bluetooth_le_device.cc
+++ b/src/bluetooth/bluetooth_le_device.cc
@@ -154,7 +154,7 @@ PlatformResult BluetoothLEDevice::ToJson(
   le_device->insert(
       std::make_pair(kDeviceName, picojson::value(std::string(device_name))));
 
-  g_free(device_name);
+  free(device_name);
 
   int power_level = 0;
   found = false;