Remove unused dimension struct

src/value.rs

@@ -15,27 +15,6 @@ use crate::units::Unit;
 use crate::utils::{devour_whitespace_or_comment, parse_interpolation};
 use crate::{Token, TokenKind};
 
-#[derive(Debug, Clone, Copy, PartialEq, Eq)]
-pub(crate) struct Dimension {
-    val: u64,
-}
-
-impl Add for Dimension {
-    type Output = Self;
-
-    fn add(self, other: Self) -> Self {
-        Dimension {
-            val: self.val + other.val,
-        }
-    }
-}
-
-impl Display for Dimension {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        write!(f, "{}", self.val)
-    }
-}
-
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub(crate) enum ListSeparator {
     Space,