perf(es/parser): Reduce comparison (#10911)

Author: bvanjoi

crates/swc_ecma_lexer/src/common/parser/expr.rs

@@ -2301,8 +2301,6 @@ pub fn parse_primary_expr_rest<'a, P: Parser<'a>>(
 
     if cur.is_class() {
         return parse_class_expr(p, start, decorators.unwrap_or_default());
-    } else if cur.is_eof() {
-        return Err(eof_error(p));
     }
 
     let try_parse_arrow_expr = |p: &mut P, id: Ident, id_is_async| -> PResult<Box<Expr>> {

crates/swc_ecma_lexer/src/common/parser/stmt.rs

@@ -1260,8 +1260,6 @@ fn parse_stmt_internal<'a, P: Parser<'a>>(
     } else if cur.is_error() {
         let err = p.input_mut().expect_error_token_and_bump();
         return Err(err);
-    } else if cur.is_eof() {
-        return Err(eof_error(p));
     }
 
     // Handle async function foo() {}