Remove redundant test_too_many_binds

with `ActiveRecord::BindParameterTest#test_too_many_binds`

sqlite adapter has its own `bind_params_length`, `ActiveRecord::BindParameterTest#test_too_many_binds` respects it.

* Modified `ActiveRecord::BindParameterTest#test_too_many_binds` to show `bind_params_length` value

```
$ git diff
diff --git a/activerecord/test/cases/bind_parameter_test.rb b/activerecord/test/cases/bind_parameter_test.rb
index 85685d1..83cd07f1d7 100644
--- a/activerecord/test/cases/bind_parameter_test.rb
+++ b/activerecord/test/cases/bind_parameter_test.rb
@@ -108,6 +108,7 @@ def test_statement_cache_with_sql_string_literal

       def test_too_many_binds
         bind_params_length = @connection.send(:bind_params_length)
+        p bind_params_length

         topics = Topic.where(id: (1 .. bind_params_length).to_a << 2**63)
         assert_equal Topic.count, topics.count
$
```

* Executed modified `ActiveRecord::BindParameterTest#test_too_many_binds`

```
$ bin/test test/cases/bind_parameter_test.rb -n test_too_many_binds
Using sqlite3
Run options: -n test_too_many_binds --seed 47321

999
.

Finished in 0.075249s, 13.2892 runs/s, 26.5784 assertions/s.
1 runs, 2 assertions, 0 failures, 0 errors, 0 skips
$
```

Author: yahonda