mysql-test/t/sp_trans_log.test : Disable it in embedded (test fails).

mysql-test/t/sp_trans_log.test:
  Quoting hf from IRC: Binlog-related tests should be disabled in the embedded server.
  
  This test fails, when run in embedded.

mysql-test/t/sp_trans_log.test

+# Binlog-related tests should be disabled in the embedded server.
+-- source include/not_embedded.inc
+
 # part of sp_trans test that appeared to be sensitive to binlog format
 --source include/have_innodb.inc
 --source include/have_binlog_format_mixed_or_row.inc