Minor code improvements with importing namespaces

Author: IsaacShelton

Diff for: src/resolve/mod.rs

@@ -281,12 +281,9 @@ pub fn resolve<'a>(
             ctx.jobs
                 .push_back(Job::Regular(*real_file_id, function_i, function_ref));
 
-            let imported_namespaces =
-                if let Some(settings) = file.settings.map(|id| &ast_workspace.settings[id.0]) {
-                    Some(&settings.imported_namespaces)
-                } else {
-                    None
-                };
+            let imported_namespaces = file
+                .settings
+                .map(|id| &ast_workspace.settings[id.0].imported_namespaces);
 
             let function_search_context =
                 ctx.function_search_ctxs.get_or_insert_with(file_id, || {