Fix clippy/compile

Author: alamb

parquet/src/column/reader.rs

@@ -1401,11 +1401,11 @@ mod tests {
         // Helper: build a DataPage v2 for this list column.
         let make_v2_page =
             |rep_levels: &[i16], def_levels: &[i16], values: &[i32], num_rows: u32| -> Page {
-                let mut rep_enc = LevelEncoder::v2(max_rep_level, rep_levels.len());
+                let mut rep_enc = LevelEncoder::v2_streaming(max_rep_level);
                 rep_enc.put(rep_levels);
                 let rep_bytes = rep_enc.consume();
 
-                let mut def_enc = LevelEncoder::v2(max_def_level, def_levels.len());
+                let mut def_enc = LevelEncoder::v2_streaming(max_def_level);
                 def_enc.put(def_levels);
                 let def_bytes = def_enc.consume();
 

parquet/src/encodings/levels.rs

@@ -21,7 +21,7 @@ use super::rle::RleEncoder;
 
 use crate::basic::Encoding;
 use crate::data_type::AsBytes;
-use crate::util::bit_util::{BitWriter, ceil, num_required_bits};
+use crate::util::bit_util::{BitWriter, num_required_bits};
 
 /// Encoder for definition/repetition levels.
 /// Currently only supports Rle and BitPacked (dev/null) encoding, including v2.