Remove redundant imports

examples/write_dir.rs

@@ -1,6 +1,4 @@
 use std::io::prelude::*;
-use std::io::{Seek, Write};
-use std::iter::Iterator;
 use zip_next::result::ZipError;
 use zip_next::write::FileOptions;
 

src/crc32.rs

@@ -55,7 +55,6 @@ impl<R: Read> Read for Crc32Reader<R> {
 #[cfg(test)]
 mod test {
     use super::*;
-    use std::io::Read;
 
     #[test]
     fn test_empty_reader() {

src/read/stream.rs

@@ -213,7 +213,6 @@ impl ZipStreamFileMetadata {
 mod test {
     use super::*;
     use std::collections::BTreeSet;
-    use std::io;
 
     struct DummyVisitor;
     impl ZipStreamVisitor for DummyVisitor {

src/write.rs

@@ -8,17 +8,6 @@ use crate::types::{ffi, AtomicU64, DateTime, System, ZipFileData, DEFAULT_VERSIO
 use byteorder::{LittleEndian, WriteBytesExt};
 use crc32fast::Hasher;
 use std::collections::HashMap;
-#[cfg(any(
-    feature = "deflate",
-    feature = "deflate-miniz",
-    feature = "deflate-zlib",
-    feature = "deflate-zlib-ng",
-    feature = "deflate-zopfli",
-    feature = "bzip2",
-    feature = "zstd",
-    feature = "time"
-))]
-use std::convert::TryInto;
 use std::default::Default;
 use std::io;
 use std::io::prelude::*;
@@ -101,7 +90,6 @@ enum GenericZipWriter<W: Write + Seek> {
 // Put the struct declaration in a private module to convince rustdoc to display ZipWriter nicely
 pub(crate) mod zip_writer {
     use super::*;
-    use std::collections::HashMap;
     /// ZIP archive generator
     ///
     /// Handles the bookkeeping involved in building an archive, and provides an

tests/end_to_end.rs

@@ -1,8 +1,7 @@
 use byteorder::{LittleEndian, WriteBytesExt};
 use std::collections::HashSet;
 use std::io::prelude::*;
-use std::io::{Cursor, Seek};
-use std::iter::FromIterator;
+use std::io::{Cursor};
 use zip_next::result::ZipResult;
 use zip_next::write::FileOptions;
 use zip_next::{CompressionMethod, ZipWriter, SUPPORTED_COMPRESSION_METHODS};