Remove erroneous DCHECK related to expression classifiers

src/parsing/expression-classifier.h

Index: src/parsing/expression-classifier.h
diff --git a/src/parsing/expression-classifier.h b/src/parsing/expression-classifier.h
index a27dcb00ce4773026217c8b2d1cff67f77100758..8e13d0e503756a4c841919348590e7abb302e31d 100644
--- a/src/parsing/expression-classifier.h
+++ b/src/parsing/expression-classifier.h
@@ -463,7 +463,6 @@ class ExpressionClassifier {
   // in an inner classifier) or it could be an existing error (in case a
   // copy is needed).
   V8_INLINE void Copy(int i) {
-    DCHECK_LE(reported_errors_end_, i);
     DCHECK_LT(i, reported_errors_->length());
     if (reported_errors_end_ != i)
       reported_errors_->at(reported_errors_end_) = reported_errors_->at(i);