[Fleet] Use "Integrations" breadcrumb in "Add integrations" (elastic#…

…103227)

* update the UI breadcrumbs in create policy package to always look like it came from integrations

* added comment about the removal of a path from fleet

Co-authored-by: Kibana Machine <42973632+kibanamachine@users.noreply.github.com>

x-pack/plugins/fleet/public/applications/fleet/sections/agent_policy/create_package_policy_page/index.tsx

@@ -495,17 +495,13 @@ export const CreatePackagePolicyPage: React.FunctionComponent = () => {
           onCancel={() => setFormState('VALID')}
         />
       )}
-      {from === 'package'
-        ? packageInfo && (
-            <IntegrationBreadcrumb
-              pkgTitle={integrationInfo?.title || packageInfo.title}
-              pkgkey={pkgKeyFromPackageInfo(packageInfo)}
-              integration={integrationInfo?.name}
-            />
-          )
-        : agentPolicy && (
-            <PolicyBreadcrumb policyName={agentPolicy.name} policyId={agentPolicy.id} />
-          )}
+      {packageInfo && (
+        <IntegrationBreadcrumb
+          pkgTitle={integrationInfo?.title || packageInfo.title}
+          pkgkey={pkgKeyFromPackageInfo(packageInfo)}
+          integration={integrationInfo?.name}
+        />
+      )}
       <StepsWithLessPadding steps={steps} />
       <EuiSpacer size="xl" />
       <EuiSpacer size="xl" />
@@ -559,14 +555,6 @@ export const CreatePackagePolicyPage: React.FunctionComponent = () => {
   );
 };
 
-const PolicyBreadcrumb: React.FunctionComponent<{
-  policyName: string;
-  policyId: string;
-}> = ({ policyName, policyId }) => {
-  useBreadcrumbs('add_integration_from_policy', { policyName, policyId });
-  return null;
-};
-
 const IntegrationBreadcrumb: React.FunctionComponent<{
   pkgTitle: string;
   pkgkey: string;

x-pack/plugins/fleet/public/constants/page_paths.ts

@@ -54,6 +54,7 @@ export const FLEET_ROUTING_PATHS = {
   policy_details: '/policies/:policyId/:tabId?',
   policy_details_settings: '/policies/:policyId/settings',
   edit_integration: '/policies/:policyId/edit-integration/:packagePolicyId',
+  // TODO: Review uses and remove if it is no longer used or linked to in any UX flows
   add_integration_from_policy: '/policies/:policyId/add-integration',
   enrollment_tokens: '/enrollment-tokens',
   data_streams: '/data-streams',