[WIP] Unmonitor `tech` blog website.

- [ ] Unmonitor `tech` blog website (tech.kazu634.com)
Unmonitor `tech` blog website.

```
diff --git a/site-cookbooks/sensu-custom/recipes/server_checks.rb b/site-cookbooks/sensu-custom/recipes/server_checks.rb
index 8bd485e..0577f3a 100644
--- a/site-cookbooks/sensu-custom/recipes/server_checks.rb
+++ b/site-cookbooks/sensu-custom/recipes/server_checks.rb
@@ -35,7 +35,7 @@ sensu_check "disk_usage" do
   interval 3600
 end

-%w{ blog tech }.each do |host|
+%w{ blog }.each do |host|
   sensu_check "#{host}.kazu634.com" do
     command "/usr/lib/nagios/plugins/check_http -H #{host}.kazu634.com -w 3 -c 5 -t 10"
     handlers ["default"]
```
Merge pull request #130 from kazu634/sensu-tech-site-monitor

Unmonitor `tech` blog website.