mesh: Remove unnecessary #ifdefs from header file
The #ifdef protections are not needed, and in fact prevent helpers
such as IS_ENABLED() from being used when calling APIs which are
optional.
#include "main.h"
#include "cfg_srv.h"
#include "health_srv.h"
-
-#if MYNEWT_VAL(BLE_MESH_CFG_CLI)
#include "cfg_cli.h"
-#endif
-
-#if MYNEWT_VAL(BLE_MESH_HEALTH_CLI)
#include "health_cli.h"
-#endif
-
-#if MYNEWT_VAL(BLE_MESH_GATT_PROXY)
#include "proxy.h"
-#endif
#endif /* __BT_MESH_H */
