Deleted project is causing warning generation each time the trigger is invoked

[hicolour]

Definitely minor thing

Feb 18, 2014 9:34:07 PM hudson.triggers.Trigger checkTriggers
WARNING: org.jenkinsci.plugins.gitlab.GitlabBuildTrigger.run() failed for build_transition_merge_request
java.lang.Error: java.io.FileNotFoundException: http://....../api/v3/projects/2/merge_requests?private_token=.....
    at org.gitlab.api.http.GitlabHTTPRequestor$1.fetch(GitlabHTTPRequestor.java:195)
    at org.gitlab.api.http.GitlabHTTPRequestor$1.hasNext(GitlabHTTPRequestor.java:150)
    at org.gitlab.api.GitlabAPI.getAllMergeRequests(GitlabAPI.java:131)
    at org.gitlab.api.GitlabAPI.getOpenMergeRequests(GitlabAPI.java:103)
    at org.jenkinsci.plugins.gitlab.GitlabRepository.check(GitlabRepository.java:56)
    at org.jenkinsci.plugins.gitlab.GitlabMergeRequestBuilder.run(GitlabMergeRequestBuilder.java:27)
    at org.jenkinsci.plugins.gitlab.GitlabBuildTrigger.run(GitlabBuildTrigger.java:98)
    at hudson.triggers.Trigger.checkTriggers(Trigger.java:257)
    at hudson.triggers.Trigger$Cron.doRun(Trigger.java:205)
    at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:54)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
    at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:744)
Caused by: java.io.FileNotFoundException: http://...../api/v3/projects/2/merge_requests?private_token=....
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1624)
    at org.gitlab.api.http.GitlabHTTPRequestor.parse(GitlabHTTPRequestor.java:260)
    at org.gitlab.api.http.GitlabHTTPRequestor.access$200(GitlabHTTPRequestor.java:31)
    at org.gitlab.api.http.GitlabHTTPRequestor$1.fetch(GitlabHTTPRequestor.java:188)
    ... 16 more