Fix clippy warnings (#4176)

crates/nu-command/src/classified/dynamic.rs

@@ -1,7 +0,0 @@
-use derive_new::new;
-use nu_protocol::hir;
-
-#[derive(new, Debug)]
-pub(crate) struct Command {
-    pub(crate) args: hir::Call,
-}

crates/nu-command/src/classified/mod.rs

@@ -1,5 +1 @@
-mod dynamic;
 pub(crate) mod external;
-
-#[allow(unused_imports)]
-pub(crate) use dynamic::Command as DynamicCommand;

crates/nu-command/src/commands/env/with_env.rs

@@ -11,12 +11,6 @@ use nu_protocol::{
 
 pub struct WithEnv;
 
-#[derive(Deserialize, Debug)]
-struct WithEnvArgs {
-    variable: Value,
-    block: CapturedBlock,
-}
-
 impl WholeStreamCommand for WithEnv {
     fn name(&self) -> &str {
         "with-env"

crates/nu-command/src/commands/generators/cal.rs

@@ -163,7 +163,7 @@ fn get_current_date() -> (i32, u32, u32) {
 
 fn add_months_of_year_to_table(
     args: &CommandArgs,
-    mut calendar_vec_deque: &mut VecDeque<Value>,
+    calendar_vec_deque: &mut VecDeque<Value>,
     tag: &Tag,
     selected_year: i32,
     (start_month, end_month): (u32, u32),
@@ -181,7 +181,7 @@ fn add_months_of_year_to_table(
 
         let add_month_to_table_result = add_month_to_table(
             args,
-            &mut calendar_vec_deque,
+            calendar_vec_deque,
             tag,
             selected_year,
             month_number,

crates/nu-command/src/commands/platform/termsize.rs

@@ -6,12 +6,6 @@ use nu_protocol::{Dictionary, Signature, UntaggedValue};
 
 pub struct TermSize;
 
-#[derive(Deserialize, Clone)]
-pub struct TermSizeArgs {
-    wide: bool,
-    tall: bool,
-}
-
 impl WholeStreamCommand for TermSize {
     fn name(&self) -> &str {
         "term size"