Erase some crud

Author: Tko1

src/reader.rs

@@ -131,7 +131,7 @@ pub fn identifier_parser(input: &str) -> IResult<&str, String> {
     );
 
     named!(identifier_tail<&str, &str>, take_while!(is_identifier_char));
-    
+
     named!(identifier <&str, String>,
          do_parse!(
              head: identifier_head >>

src/repl.rs

@@ -11,10 +11,6 @@ use crate::value::Evaluable;
 use crate::value::Value;
 use std::rc::Rc;
 
-use nom::Err::Incomplete;
-use nom::IResult;
-use nom::Needed::Size;
-
 pub struct Repl {
     environment: Rc<Environment>,
 }