Test main.log_tables was unmarked as experimental.

mysql-test/collections/default.experimental

@@ -14,7 +14,6 @@ main.gis-rtree @freebsd                  # Bug#38965 2010-05-04 alik test cases
 main.information_schema                  # Bug#47449 2009-09-19 alik main.information_schema and innodb.innodb_information_schema fail sporadically
 main.lock_multi_bug38499                 # Bug#47448 2009-09-19 alik main.lock_multi_bug38499 times out sporadically
 main.lock_multi_bug38691 @solaris        # Bug#47792 2009-10-02 alik main.lock_multi_bug38691 times out sporadically on Solaris 10
-main.log_tables                          # Bug#47924 2009-10-08 alik main.log_tables times out sporadically 
 main.lowercase_table2 @darwin            # Bug#55509 2010-07-26 alik main.lowercase_table2 fails on Mac OSX (again)
 main.outfile_loaddata @solaris           # Bug#46895 2010-01-20 alik Test "outfile_loaddata" fails (reproducible)
 main.show_check                          # Bug#58414 2010-11-24 alik Race condition in show_check.test