Remove JavaIterator and MapEntry

pkg/analysis_server/lib/src/services/generated/completion.dart

Index: pkg/analysis_server/lib/src/services/generated/completion.dart
diff --git a/pkg/analysis_server/lib/src/services/generated/completion.dart b/pkg/analysis_server/lib/src/services/generated/completion.dart
index f663f07a084e62aa0246207ba4874dfcf253f0c2..53fb44dbac8f308bd73dd7a9df138545b11bb85f 100644
--- a/pkg/analysis_server/lib/src/services/generated/completion.dart
+++ b/pkg/analysis_server/lib/src/services/generated/completion.dart
@@ -3583,10 +3583,9 @@ class Filter {
   }
 
   void _removeNotMatching(List<Element> elements) {
-    for (JavaIterator<Element> I = new JavaIterator(elements); I.hasNext;) {
-      Element element = I.next();
-      if (!_match(element)) {
-        I.remove();
+    for (int i = elements.length - 1; i >= 0; i--) {
+      if (!_match(elements[i])) {
+        elements.removeAt(i);
       }
     }
   }