Merge pilot.(none):/data/msvensson/mysql/bug30593/my51-bug30593

into  pilot.(none):/data/msvensson/mysql/mysql-5.1-new-maint

mysql-test/lib/mtr_timer.pl

@@ -18,7 +18,6 @@
 # and is part of the translation of the Bourne shell script with the
 # same name.
 
-use Socket;
 use Errno;
 use strict;