Remove --no-normal-deps

It doesn't actually work as-is

src/cli.rs

@@ -1,7 +1,6 @@
 use clap::{App, AppSettings, Arg, SubCommand};
 
 pub struct Config {
-    pub normal_deps: bool,
     pub build_deps: bool,
     pub dev_deps: bool,
     pub target_deps: bool,
@@ -44,11 +43,6 @@ pub fn parse_options() -> Config {
                         .long("target-deps")
                         .help("Include cfg() dependencies in the graph"),
                 )
-                .arg(
-                    Arg::with_name("no_normal_deps")
-                        .long("no-normal-deps")
-                        .help("Don't include normal dependencies in the graph"),
-                )
                 .arg(Arg::with_name("dedup_transitive_deps").long("dedup-transitive-deps").help(
                     "Remove direct dependency edges where there's at \
                     least one transitive dependency of the same kind.",
@@ -118,7 +112,6 @@ pub fn parse_options() -> Config {
     let matches = matches.subcommand_matches("depgraph").unwrap();
 
     let all_deps = matches.is_present("all_deps");
-    let normal_deps = !matches.is_present("no_normal_deps");
     let build_deps = all_deps || matches.is_present("build_deps");
     let dev_deps = all_deps || matches.is_present("dev_deps");
     let target_deps = all_deps || matches.is_present("target_deps");
@@ -142,7 +135,6 @@ pub fn parse_options() -> Config {
     let unstable_flags = matches.values_of("unstable_flags").map_or_else(Vec::new, collect_owned);
 
     Config {
-        normal_deps,
         build_deps,
         dev_deps,
         target_deps,

src/graph/builder.rs

@@ -152,8 +152,7 @@ fn is_proc_macro(pkg: &MetaPackage) -> bool {
 }
 
 pub fn skip_dep(config: &Config, info: &cargo_metadata::DepKindInfo) -> bool {
-    (!config.normal_deps && info.kind == MetaDepKind::Normal)
-        || (!config.build_deps && info.kind == MetaDepKind::Build)
+    (!config.build_deps && info.kind == MetaDepKind::Build)
         || (!config.dev_deps && info.kind == MetaDepKind::Development)
         || (!config.target_deps && info.target.is_some())
 }