Total field norm fixed.

src/query/term_query/mod.rs

@@ -18,7 +18,6 @@ mod tests {
     use schema::*;
     use fieldnorm::FieldNormReader;
     use schema::IndexRecordOption;
-    use fastfield::FastFieldReader;
 
     fn abs_diff(left: f32, right: f32) -> f32 {
         (right - left).abs()

src/query/term_query/term_scorer.rs

@@ -4,7 +4,6 @@ use docset::{DocSet, SkipResult};
 use postings::SegmentPostings;
 use query::Scorer;
 use postings::Postings;
-use fastfield::FastFieldReader;
 use fieldnorm::FieldNormReader;
 
 pub struct TermScorer {