removeIssueRelation
Removes an IssueRelation from an Issue, require MANAGE_ISSUES on any of the Trackables the Issue the IssueRelation starts at is on. If the IssueRelation was already removed, no event is created.
removeIssueRelation(
  input: RemoveIssueRelationInput!
): RemoveIssueRelationPayload!
Arguments
removeIssueRelation.input ● RemoveIssueRelationInput! non-null input
Defines the IssueRelation to remove