Removes an issueLinkType from the datastore.
|From class java.lang.Object|
|From interface com.atlassian.jira.issue.link.IssueLinkTypeDestroyer|
Removes an issueLinkType from the datastore. If a swapLinkType is passed (not null) the exsting issue links of the issueLinkType are changed to the swapLinkType. If swapLinkType is null, all issue links are removed.
|issueLinkTypeId||the id of the issue link type top delete|
|swapLinkType||If null issue links are removed, if not null the issue links are changed to this issue link type|
|remoteUser||the remote user performing the delete operation (needed for change item creating)|