removes the convenience instance version of AR::Base.silence_auto_explain

Rationale: As discussed with José and Jon, this convenience
shortcut is not clearly justified and it could let the user
thing the disabled EXPLAINs are related to the model instance
rather than being globally disabled.

1 files changed, 2 insertions, 5 deletions

diff --git a/activerecord/test/cases/explain_test.rb b/activerecord/test/cases/explain_test.rb
index ff460b44eb..0284cca920 100644
--- a/activerecord/test/cases/explain_test.rb
+++ b/activerecord/test/cases/explain_test.rb
@@ -83,11 +83,8 @@ if ActiveRecord::Base.connection.supports_explain?
     def test_silence_auto_explain
       base.expects(:collecting_sqls_for_explain).never
       base.logger.expects(:warn).never
-
-      [base, cars(:honda)].each do |target|
-        target.silence_auto_explain do
-          with_threshold(0) { Car.all }
-        end
+      base.silence_auto_explain do
+        with_threshold(0) { Car.all }
       end
     end