Merge pull request #30024 from kamipo/remove_redundant_unless_branch

Remove redundant `unless current_adapter?(:OracleAdapter)`

activerecord/test/cases/comment_test.rb

@@ -119,8 +119,6 @@ def test_schema_dump_with_comments
         assert_match %r[t\.integer\s+"rating",\s+precision: 38,\s+comment: "I am running out of imagination"], output
       else
         assert_match %r[t\.integer\s+"rating",\s+comment: "I am running out of imagination"], output
-      end
-      unless current_adapter?(:OracleAdapter)
         assert_match %r[t\.index\s+.+\s+comment: "\\\"Very important\\\" index that powers all the performance.\\nAnd it's fun!"], output
         assert_match %r[t\.index\s+.+\s+name: "idx_obvious",\s+comment: "We need to see obvious comments"], output
       end