Fix for rust beta compiler

The beta compiler reports duplicated input:

error: the item `IntoValues` is imported redundantly
   --> lib/entry/libimagentrylink/src/internal.rs:398:13
    |
36  | use self::iter::IntoValues;
    |     ---------------------- the item `IntoValues` is already imported here
...
398 |         use internal::iter::IntoValues;
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
    |

so we fix this here.

Other imports were fixed as well.

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>

bin/core/imag-link/src/main.rs

@@ -129,8 +129,6 @@ fn main() {
 }
 
 fn get_entry_by_name<'a>(rt: &'a Runtime, name: &str) -> Result<Option<FileLockEntry<'a>>> {
-    use libimagstore::storeid::StoreId;
-
     debug!("Getting: {:?}", name);
     let result = StoreId::new(PathBuf::from(name)).and_then(|id| rt.store().get(id));
 

lib/core/libimagrt/src/configuration.rs

@@ -40,7 +40,6 @@ pub fn fetch_config(searchpath: &PathBuf) -> Result<Option<Value>> {
     use std::io::Write;
     use std::io::stderr;
 
-    use xdg_basedir;
     use itertools::Itertools;
 
     use libimagutil::variants::generate_variants as gen_vars;

lib/core/libimagrt/src/lib.rs

@@ -39,8 +39,6 @@
 
 #[macro_use] extern crate log;
 extern crate itertools;
-#[cfg(unix)] extern crate xdg_basedir;
-extern crate env_logger;
 extern crate ansi_term;
 extern crate handlebars;
 #[macro_use] extern crate failure;

lib/core/libimagrt/src/runtime.rs

@@ -77,8 +77,6 @@ impl<'a> Runtime<'a> {
     pub fn new<C>(cli_app: C) -> Result<Runtime<'a>>
         where C: Clone + CliSpec<'a> + InternalConfiguration
     {
-        use libimagerror::trace::trace_error;
-
         let matches = cli_app.clone().matches();
 
         let rtp = get_rtp_match(&matches);
@@ -354,7 +352,6 @@ impl<'a> Runtime<'a> {
         use log::set_max_level;
         use log::set_boxed_logger;
         use std::env::var as env_var;
-        use env_logger;
 
         if env_var("IMAG_LOG_ENV").is_ok() {
             let _ = env_logger::try_init();
@@ -643,8 +640,6 @@ pub trait IdPathProvider {
 
 /// Exported for the `imag` command, you probably do not want to use that.
 pub fn get_rtp_match<'a>(matches: &ArgMatches<'a>) -> PathBuf {
-    use std::env;
-
     matches.value_of(Runtime::arg_runtimepath_name())
         .map_or_else(|| {
             if let Ok(home) = env::var("IMAG_RTP") {

lib/entry/libimagentrylink/src/external.rs

@@ -452,7 +452,6 @@ mod tests {
     use libimagstore::store::Store;
 
     fn setup_logging() {
-        use env_logger;
         let _ = env_logger::try_init();
     }
 

lib/entry/libimagentrylink/src/internal.rs

@@ -395,8 +395,6 @@ impl InternalLinker for Entry {
 
     /// Set the links in a header and return the old links, if any.
     fn set_internal_links(&mut self, links: Vec<&mut Entry>) -> Result<LinkIter> {
-        use internal::iter::IntoValues;
-
         debug!("Setting internal links");
 
         let self_location = self.get_location().clone();