Remove the dep_extern argument

Author: fornwall

src/main.rs

@@ -159,14 +159,6 @@ fn parse_args() -> Args {
                 .multiple_occurrences(true)
                 .number_of_values(1)
             )
-            .arg(Arg::new("dep_extern")
-                .help("Like `dep`, except that it *also* adds a `#[macro_use] extern crate name;` item for expression and loop scripts. Note that this only works if the name of the dependency and the name of the library it generates are exactly the same.")
-                .long("dep-extern")
-                .short('D')
-                .takes_value(true)
-                .multiple_occurrences(true)
-                .requires("expr_or_loop")
-            )
             .arg(Arg::new("extern")
                 .help("Adds an `#[macro_use] extern crate name;` item for expressions and loop scripts.")
                 .long("extern")