From 9555e94670be80b659c6b0cd75f3c44c02d1d9f3 Mon Sep 17 00:00:00 2001
From: Jens Getreu <getreu@web.de>
Date: Sun, 10 Sep 2017 07:44:48 +0300
Subject: [PATCH] remove unused crate imports

such as `extern crate nb` in order to compile with
`rustc 1.22.0-nightly (744dd6c1d 2017-09-02)`
---
 examples/claim.rs         | 1 -
 examples/usart1-rx-dma.rs | 1 -
 examples/usart1-tx-dma.rs | 1 -
 3 files changed, 3 deletions(-)

diff --git a/examples/claim.rs b/examples/claim.rs
index 82aeaaa..90a4281 100644
--- a/examples/claim.rs
+++ b/examples/claim.rs
@@ -2,7 +2,6 @@
 #![no_std]
 
 extern crate blue_pill;
-extern crate cortex_m;
 extern crate cortex_m_rtfm as rtfm;
 
 use blue_pill::stm32f103xx::Interrupt;
diff --git a/examples/usart1-rx-dma.rs b/examples/usart1-rx-dma.rs
index dee5fea..5465976 100644
--- a/examples/usart1-rx-dma.rs
+++ b/examples/usart1-rx-dma.rs
@@ -7,7 +7,6 @@
 
 extern crate blue_pill;
 extern crate cortex_m_rtfm as rtfm;
-extern crate nb;
 
 use blue_pill::Serial;
 use blue_pill::dma::{Buffer, Dma1Channel5};
diff --git a/examples/usart1-tx-dma.rs b/examples/usart1-tx-dma.rs
index c689851..24d26b7 100644
--- a/examples/usart1-tx-dma.rs
+++ b/examples/usart1-tx-dma.rs
@@ -7,7 +7,6 @@
 
 extern crate blue_pill;
 extern crate cortex_m_rtfm as rtfm;
-extern crate nb;
 
 use blue_pill::Serial;
 use blue_pill::dma::{Buffer, Dma1Channel4};
-- 
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