remove unused locals/members/test functions

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

Index: pkg/analyzer/lib/src/generated/constant.dart
diff --git a/pkg/analyzer/lib/src/generated/constant.dart b/pkg/analyzer/lib/src/generated/constant.dart
index fe641dba075c7d993a63135fd4ce936ea53db7f7..e227d79b1ffdb52db9208956aaab6d300edae1c9 100644
--- a/pkg/analyzer/lib/src/generated/constant.dart
+++ b/pkg/analyzer/lib/src/generated/constant.dart
@@ -1330,14 +1330,6 @@ class ConstantFinder extends RecursiveAstVisitor<Object> {
     }
     return null;
   }
-
-  AnalysisContext _getOwningContext() {
-    if (context is InternalAnalysisContext) {
-      InternalAnalysisContext internalContext = context;
-      return internalContext.getContextFor(librarySource);
-    }
-    return context;
-  }
 }
 
 /**