remove unneeded parentheses

Summary: New warning lint in 1.90.0

Reviewed By: dtolnay, opsound

Differential Revision: D83221094

fbshipit-source-id: 4381022a6e943a27d0017535b1f8b02e8a9546a9

Author: cjlongoria

hphp/hack/src/parser/lowerer/desugar_expression_tree.rs

@@ -624,7 +624,7 @@ fn create_temp_statement_parallel(
     let lhss = exprs
         .iter()
         .enumerate()
-        .map(|(i, expr)| (mk_lvar(&expr.1, i)))
+        .map(|(i, expr)| mk_lvar(&expr.1, i))
         .collect();
     // assign a tuple to a list to ensure any awaits can execute concurrently.
     // We don't use a concurrent statement because that requires each rhs to have

hphp/hack/src/parser/lowerer/lowerer.rs

@@ -1402,7 +1402,7 @@ fn prep_string2<'a>(
         (!s.is_empty() && is_qoute(s[0])) || (s.len() > 1 && (s[0] == b'b' && s[1] == b'\"'))
     };
     let last_is_qoute = |s: &[u8]| !s.is_empty() && is_qoute(s[s.len() - 1]);
-    let is_heredoc = |s: &[u8]| (s.len() > 3 && &s[0..3] == b"<<<");
+    let is_heredoc = |s: &[u8]| s.len() > 3 && &s[0..3] == b"<<<";
     let mut nodes = nodes.iter();
     let first = nodes.next();
     match first.map(|n| &n.children) {