pretty: remove dead code

Signed-off-by: Gunwant Jain <mail@wantguns.dev>

src/routes/pretty_retrieve.rs

@@ -1,7 +1,6 @@
 use rocket_dyn_templates::Template;
 
 use std::collections::HashMap;
-use std::env;
 use std::path::Path;
 
 use crate::models::paste_id::PasteId;
@@ -13,11 +12,9 @@ pub async fn pretty_retrieve(id: PasteId<'_>) -> Option<Template> {
     let filepath = Path::new(&filename);
 
     let contents = get_pretty_body(&filename, &String::from("txt"));
-    let theme = env::var("THEME").unwrap_or("".to_string());
 
     let mut map = HashMap::new();
     map.insert("title", id.to_string());
-    map.insert("theme", theme);
     map.insert("body", contents);
     let rendered = Template::render("pretty", &map);
 
@@ -25,4 +22,4 @@ pub async fn pretty_retrieve(id: PasteId<'_>) -> Option<Template> {
         true => Some(rendered),
         false => None,
     }
-}
+}