Fixed clippy lint, removed function that was only used in 1 place

src/de/impls.rs

@@ -413,7 +413,6 @@ where
             // Safety: we know that T is a u8, so it is perfectly safe to
             // translate an array of u8 into an array of T
             let res = unsafe { ptr.read() };
-            core::mem::forget(buf);
             Ok(res)
         } else {
             let result =

src/de/read.rs

@@ -69,16 +69,6 @@ impl<'storage> SliceReader<'storage> {
     pub fn new(bytes: &'storage [u8]) -> SliceReader<'storage> {
         SliceReader { slice: bytes }
     }
-
-    #[inline(always)]
-    fn get_byte_slice(&mut self, length: usize) -> Result<&'storage [u8], DecodeError> {
-        if length > self.slice.len() {
-            return Err(DecodeError::UnexpectedEnd);
-        }
-        let (read_slice, remaining) = self.slice.split_at(length);
-        self.slice = remaining;
-        Ok(read_slice)
-    }
 }
 
 impl<'storage> Reader for SliceReader<'storage> {
@@ -108,6 +98,11 @@ impl<'storage> Reader for SliceReader<'storage> {
 impl<'storage> BorrowReader<'storage> for SliceReader<'storage> {
     #[inline(always)]
     fn take_bytes(&mut self, length: usize) -> Result<&'storage [u8], DecodeError> {
-        self.get_byte_slice(length)
+        if length > self.slice.len() {
+            return Err(DecodeError::UnexpectedEnd);
+        }
+        let (read_slice, remaining) = self.slice.split_at(length);
+        self.slice = remaining;
+        Ok(read_slice)
     }
 }

src/enc/write.rs

@@ -52,7 +52,7 @@ impl<'storage> Writer for SliceWriter<'storage> {
             return Err(EncodeError::UnexpectedEnd);
         }
         let (a, b) = core::mem::replace(&mut self.slice, &mut []).split_at_mut(bytes.len());
-        a.copy_from_slice(&bytes[..]);
+        a.copy_from_slice(bytes);
         self.slice = b;
 
         Ok(())