feat(alerts): Remove "Related issues" from incidents (#16379)

This removes the UI components that fetch and render related issues on the Incidents details view.

Author: billyvg

src/sentry/static/sentry/app/views/incidents/details/body.tsx

@@ -16,7 +16,6 @@ import space from 'app/styles/space';
 import theme from 'app/utils/theme';
 
 import Activity from './activity';
-import RelatedIssues from './relatedIssues';
 import Suspects from './suspects';
 
 import {Incident} from '../types';
@@ -87,8 +86,6 @@ export default class DetailsBody extends React.Component<Props> {
             </div>
 
             <Suspects {...this.props} />
-
-            <RelatedIssues params={params} incident={incident} />
           </PageContent>
         </Sidebar>
       </StyledPageContent>

src/sentry/static/sentry/app/views/incidents/details/relatedIssues/index.tsx

@@ -174,70 +174,4 @@ describe('IncidentDetails', function() {
     wrapper.find('SubscribeButton').simulate('click');
     expect(subscribe).toHaveBeenCalled();
   });
-
-  it('loads related incidents', async function() {
-    MockApiClient.addMockResponse({
-      url: '/issues/1/',
-      body: TestStubs.Group({
-        id: '1',
-        organization,
-      }),
-    });
-    MockApiClient.addMockResponse({
-      url: '/issues/2/',
-      body: TestStubs.Group({
-        id: '2',
-        organization,
-      }),
-    });
-    MockApiClient.addMockResponse({
-      url: '/organizations/org-slug/incidents/123/',
-      body: {
-        ...mockIncident,
-
-        groups: ['1', '2'],
-      },
-    });
-
-    const wrapper = createWrapper();
-
-    await tick();
-    wrapper.update();
-
-    expect(wrapper.find('RelatedItem')).toHaveLength(2);
-
-    expect(
-      wrapper
-        .find('RelatedItem Title')
-        .at(0)
-        .text()
-    ).toBe('RequestErrorfetchData(app/components/group/suggestedOwners)');
-
-    expect(
-      wrapper
-        .find('RelatedItem GroupShortId')
-        .at(0)
-        .text()
-    ).toBe('JAVASCRIPT-6QS');
-  });
-
-  it('renders incident without issues', async function() {
-    MockApiClient.addMockResponse({
-      url: '/organizations/org-slug/incidents/123/',
-      body: {
-        ...mockIncident,
-        groups: [],
-      },
-    });
-
-    const wrapper = createWrapper();
-
-    expect(wrapper.find('RelatedIssues Placeholder')).toHaveLength(1);
-
-    await tick();
-    wrapper.update();
-
-    expect(wrapper.find('RelatedItem')).toHaveLength(0);
-    expect(wrapper.find('RelatedIssues Placeholder')).toHaveLength(0);
-  });
 });