Removes the csv example

numbers.csv

@@ -1,5 +0,0 @@
-65279,1179403647,1463895090
-3.1415927,2.7182817,1.618034
--40,-273.15
-13,42
-65537

src/csv.pest

@@ -1,3 +0,0 @@
-field = { (ASCII_DIGIT | "." | "-")+ }
-record = { field ~ ("," ~ field)* }
-file = { SOI ~ (record ~ ("\r\n" | "\n"))* ~ EOI }

src/csv_main.rs

@@ -1,44 +0,0 @@
-extern crate pest;
-#[macro_use]
-extern crate pest_derive;
-
-use pest::Parser;
-use std::fs;
-
-#[derive(Parser)]
-#[grammar = "csv.pest"]
-pub struct CSVParser;
-
-fn main() {
-    let unparsed_file = fs::read_to_string("numbers.csv").expect("cannot read file");
-
-    let file = CSVParser::parse(Rule::file, &unparsed_file)
-        .expect("unsuccessful parse") // unwrap the parse result
-        .next().unwrap(); // get and unwrap the `file` rule; never fails
-
-    let mut field_sum: f64 = 0.0;
-    let mut record_count: u64 = 0;
-
-    for record in file.into_inner() {
-        match record.as_rule() {
-            Rule::record => {
-                record_count += 1;
-
-                for field in record.into_inner() {
-                    field_sum += field.as_str().parse::<f64>().unwrap();
-                }
-            }
-            Rule::EOI => (),
-            _ => unreachable!(),
-        }
-    }
-
-    println!("Sum of fields: {}", field_sum);
-    println!("Number of records: {}", record_count);
-
-    // let successful_parse = CSVParser::parse(Rule::field, "-273.15");
-    // println!("{:?}", successful_parse);
-    //
-    // let unsuccessful_parse = CSVParser::parse(Rule::field, "this is not a number");
-    // println!("{:?}", unsuccessful_parse);
-}