test: drop unused testing method

src/testing/mod.rs

@@ -1,32 +1 @@
 //! Provides testing helpers and utilities
-
-use std::fs::File;
-use std::io::{BufRead, BufReader};
-use std::str;
-
-/// Loads a test data file into a vector of `f64`'s.
-/// Path is relative to /data.
-///
-/// # Panics
-///
-/// Panics if the file does not exist or could not be opened, or
-/// there was an error reading the file.
-#[cfg(test)]
-pub fn load_data(path: &str) -> Vec<f64> {
-    // note: the copious use of unwrap is because this is a test helper and
-    // if reading the data file fails, we want to panic immediately
-
-    let path_prefix = "./data/".to_string();
-    let true_path = path_prefix + path.trim().trim_start_matches('/');
-
-    let f = File::open(true_path).unwrap();
-    let mut reader = BufReader::new(f);
-
-    let mut buf = String::new();
-    let mut data: Vec<f64> = vec![];
-    while reader.read_line(&mut buf).unwrap() > 0 {
-        data.push(buf.trim().parse::<f64>().unwrap());
-        buf.clear();
-    }
-    data
-}