Remove unused parameter from initForIncrementalResolution

pkg/analyzer/lib/src/generated/resolver.dart

Index: pkg/analyzer/lib/src/generated/resolver.dart
diff --git a/pkg/analyzer/lib/src/generated/resolver.dart b/pkg/analyzer/lib/src/generated/resolver.dart
index fab4ed1df0ca8e18f6b675b1e8d4f6884432492c..e2c188ee75de112d686f235fbcee90efd73b6e1f 100644
--- a/pkg/analyzer/lib/src/generated/resolver.dart
+++ b/pkg/analyzer/lib/src/generated/resolver.dart
@@ -7291,13 +7291,7 @@ class ResolverVisitor extends ScopedVisitor {
   /**
    * Prepares this [ResolverVisitor] to using it for incremental resolution.
    */
-  void initForIncrementalResolution([Declaration declaration = null]) {
-    if (declaration != null) {
-      Element element = declaration.element;
-      if (element is ExecutableElement) {
-        _enclosingFunction = element;
-      }
-    }
+  void initForIncrementalResolution() {
     _overrideManager.enterScope();
   }