Updating server dependancies (#6712)

vendor/github.com/go-sql-driver/mysql/.travis/docker.cnf

@@ -1,5 +0,0 @@
-[client]
-user = gotest
-password = secret
-host = 127.0.0.1
-port = 3307

vendor/github.com/go-sql-driver/mysql/.travis/wait_mysql.sh

@@ -1,8 +0,0 @@
-#!/bin/sh
-while :
-do
-    sleep 3
-    if mysql -e 'select version()'; then
-        break
-    fi
-done