Remove unnecessary statements

src/ds3231.rs

@@ -1,6 +1,5 @@
 //! Functions exclusive of DS3231
 
-extern crate embedded_hal as hal;
 use super::{ic, BitFlags, Ds323x, CONTROL_POR_VALUE};
 use core::marker::PhantomData;
 use hal::blocking;

src/ds3232.rs

@@ -1,6 +1,5 @@
 //! Functions exclusive of DS3232
 
-extern crate embedded_hal as hal;
 use super::{ic, BitFlags, Ds323x, Error, TempConvRate, CONTROL_POR_VALUE};
 use core::marker::PhantomData;
 use hal::blocking;

src/ds3234.rs

@@ -1,6 +1,4 @@
 //! Functions exclusive of DS3234
-
-extern crate embedded_hal as hal;
 use super::{ic, BitFlags, Ds323x, Error, Register, TempConvRate, CONTROL_POR_VALUE};
 use core::marker::PhantomData;
 use hal::blocking;

src/ds323x/alarms.rs

@@ -1,6 +1,5 @@
 //! Alarm support
 
-extern crate embedded_hal as hal;
 use super::super::{BitFlags, Ds323x, Error, Hours, Register};
 use super::{decimal_to_packed_bcd, hours_to_register};
 use interface::{ReadData, WriteData};

src/ds323x/configuration.rs

@@ -1,6 +1,5 @@
 //! Device configuration
 
-extern crate embedded_hal as hal;
 use super::super::{BitFlags, Ds323x, Error, Register, SqWFreq};
 use interface::{ReadData, WriteData};
 

src/ds323x/datetime.rs

@@ -1,6 +1,5 @@
 //! Common implementation
 
-extern crate embedded_hal as hal;
 use super::super::{BitFlags, Ds323x, Error, Register};
 use super::{decimal_to_packed_bcd, hours_to_register, packed_bcd_to_decimal};
 use interface::{ReadData, WriteData};

src/ds323x/status.rs

@@ -1,6 +1,5 @@
 //! Device status
 
-extern crate embedded_hal as hal;
 use super::super::{BitFlags, Ds323x, Error, Register};
 use interface::{ReadData, WriteData};
 

src/interface.rs

@@ -1,8 +1,5 @@
 //! I2C/SPI interfaces
 
-#![deny(missing_docs)]
-
-extern crate embedded_hal as hal;
 use super::{Error, DEVICE_ADDRESS};
 use hal::blocking;