Remove instances of use of old helper

Author: Nikil-Shyamsunder

src/parser.rs

@@ -54,11 +54,12 @@ pub fn parse_boxed_expr(
                 Rule::path_id => {
                     let path_id = primary.as_str();
 
-                    let symbol_id = SymbolTable::symbol_id_from_name(st, path_id);
-                    match symbol_id {
-                        Some(id) => BoxedExpr::Sym(id, start, end),
-                        None => panic!("Referencing undefined symbol: {}", path_id),
-                    }
+                    let symbol_id = st[path_id];
+                    BoxedExpr::Sym(symbol_id, start, end)
+                    // match symbol_id {
+                    //     Some(id) => BoxedExpr::Sym(id, start, end),
+                    //     None => panic!("Referencing undefined symbol: {}", path_id),
+                    // }
                 }
 
                 // parse don't care