Fix clippy warnings

Author: eldruin

src/serial.rs

@@ -83,10 +83,8 @@ impl std::error::Error for SerialError {}
 impl embedded_hal::serial::Error for SerialError {
     fn kind(&self) -> embedded_hal::serial::ErrorKind {
         use embedded_hal::serial::ErrorKind::*;
-        match &self.err {
-            // TODO: match any errors here if we can find any that are relevant
-            _ => Other,
-        }
+        // TODO: match any errors here if we can find any that are relevant
+        Other
     }
 }
 

src/spi.rs

@@ -165,10 +165,8 @@ impl From<io::Error> for SPIError {
 impl embedded_hal::spi::Error for SPIError {
     fn kind(&self) -> embedded_hal::spi::ErrorKind {
         use embedded_hal::spi::ErrorKind;
-        match self.err.kind() {
-            // TODO: match any errors here if we can find any that are relevant
-            _ => ErrorKind::Other,
-        }
+        // TODO: match any errors here if we can find any that are relevant
+        ErrorKind::Other
     }
 }