Only print "InnoDB: Transaction was aborted..." if log_warnings >= 4

This is a minor fixup for
MDEV-24035 Failing assertion UT_LIST_GET_LEN(lock.trx_locks) == 0
causing disruption and replication failure

sql/sql_class.cc

@@ -5805,6 +5805,20 @@ extern "C" void *thd_mdl_context(MYSQL_THD thd)
   return &thd->mdl_context;
 }
 
+
+/**
+  log_warnings accessor
+  @param thd   the current session
+
+  @return log warning level
+*/
+
+extern "C" int thd_log_warnings(const MYSQL_THD thd)
+{
+  return thd->variables.log_warnings;
+}
+
+
 /**
   Send check/repair message to the user