Remove the --file flag, it's no longer needed and conflicts with the -f flag

src/main.rs

@@ -10,13 +10,6 @@ fn main() {
         .version("0.1")
         .author("Daan Boerlage <runebaas@gmail.com>")
         .about("When fortune is run with no arguments it prints out a random epigram. Epigrams are divided into several categories.")
-        .arg(Arg::with_name("file")
-            .short("F")
-            .long("file")
-            .default_value("fortunes")
-            .help("The fortune file")
-            .takes_value(true)
-            .value_name("file"))
         .arg(Arg::with_name("length")
             .short("n")
             .long("length")

src/utils/options_parser.rs

@@ -3,7 +3,6 @@ use clap::App;
 pub fn parse(app: App) -> Parameters {
     let matches = app.get_matches();
     let options: Parameters = Parameters {
-        filename: matches.value_of("file").unwrap().to_owned(),
         length: matches
             .value_of("length")
             .unwrap()
@@ -24,8 +23,6 @@ pub fn parse(app: App) -> Parameters {
 }
 
 pub struct Parameters {
-    pub filename: String,
-
     pub length: usize,
     pub long_fortunes: bool,
     pub short_fortunes: bool,