The `default` arg of `index_name_exists?` makes to optional

The `default` arg of `index_name_exists?` is only used the adapter does
not implemented `indexes`. But currently all adapters implemented
`indexes` (See #26688). Therefore the `default` arg is never used.

1 files changed, 2 insertions, 2 deletions

diff --git a/activerecord/lib/active_record/migration/compatibility.rb b/activerecord/lib/active_record/migration/compatibility.rb
index ffb54f5137..85032ce470 100644
--- a/activerecord/lib/active_record/migration/compatibility.rb
+++ b/activerecord/lib/active_record/migration/compatibility.rb
@@ -145,13 +145,13 @@ module ActiveRecord
           def index_name_for_remove(table_name, options = {})
             index_name = index_name(table_name, options)
 
-            unless index_name_exists?(table_name, index_name, true)
+            unless index_name_exists?(table_name, index_name)
               if options.is_a?(Hash) && options.has_key?(:name)
                 options_without_column = options.dup
                 options_without_column.delete :column
                 index_name_without_column = index_name(table_name, options_without_column)
 
-                return index_name_without_column if index_name_exists?(table_name, index_name_without_column, false)
+                return index_name_without_column if index_name_exists?(table_name, index_name_without_column)
               end
 
               raise ArgumentError, "Index name '#{index_name}' on table '#{table_name}' does not exist"