refactoring: remove unnecessary return statements

src/builtins/ls.rs

@@ -56,11 +56,11 @@ impl Builtin for Ls {
 
 fn format_filesize(filesize: u64) -> String {
     if filesize > 9_999 && filesize <= 999_999 {
-        return format!("{}KB", filesize / 1_000);
+        format!("{}KB", filesize / 1_000)
     } else if filesize > 999_999 && filesize <= 999_999_999 {
-        return format!("{}MB", filesize / 1_000_000);
+        format!("{}MB", filesize / 1_000_000)
     } else if filesize > 999_999_999 {
-        return format!("{}MB", filesize / 1_000_000_000);
+        format!("{}MB", filesize / 1_000_000_000)
     } else {
         format!("{}B", filesize)
     }
@@ -69,14 +69,14 @@ fn format_filesize(filesize: u64) -> String {
 fn format_date(date: DateTime<Local>) -> String {
     let now: DateTime<Local> = Local::now();
     if date.day() != now.day() || date.month() != now.month() || date.year() != now.year() {
-        return format!("{}-{:02}-{:02}", date.year(), date.month(), date.day());
+        format!("{}-{:02}-{:02}", date.year(), date.month(), date.day())
     } else {
-        return format!(
+        format!(
             "{:02}:{:02}:{:02}",
             date.hour(),
             date.minute(),
             date.second()
-        );
+        )
     }
 }