Auto-fix clippy::collapsible_if violations (#36428)

Release Notes:

- N/A

crates/eval/src/eval.rs

@@ -167,15 +167,14 @@ fn main() {
                     continue;
                 }
 
-                if let Some(language) = meta.language_server {
-                    if !languages.contains(&language.file_extension) {
+                if let Some(language) = meta.language_server
+                    && !languages.contains(&language.file_extension) {
                         panic!(
                             "Eval for {:?} could not be run because no language server was found for extension {:?}",
                             meta.name,
                             language.file_extension
                         );
                     }
-                }
 
                 // TODO: This creates a worktree per repetition. Ideally these examples should
                 // either be run sequentially on the same worktree, or reuse worktrees when there