ref(✂️): remove unused experiment code

static/app/types/experiments.tsx

 experiments: Partial<OrgExperiments>; 
 experiments: Partial<OrgExperiments>; 
@@ -77,5 +77,3 @@ export type OrgExperiments = GetExperimentAssignment<
 export type UserExperiments = GetExperimentAssignment<
   TypeSelect<ExperimentList, ExperimentType.USER>['key']
 >;
-
-export type ExperimentAssignment = GetExperimentAssignment<ExperimentList['key']>;

static/app/types/hooks.tsx

@@ -7,13 +7,11 @@ import type {ProductSelectionProps} from 'sentry/components/onboarding/productSe
 import type SidebarItem from 'sentry/components/sidebar/sidebarItem';
 import type DateRange from 'sentry/components/timeRangeSelector/dateRange';
 import type SelectorItems from 'sentry/components/timeRangeSelector/selectorItems';
-import type {UseExperiment} from 'sentry/utils/useExperiment';
 import type {TitleableModuleNames} from 'sentry/views/insights/common/components/modulePageProviders';
 import type {OrganizationStatsProps} from 'sentry/views/organizationStats';
 import type {RouteAnalyticsContext} from 'sentry/views/routeAnalyticsContextProvider';
 import type {NavigationItem, NavigationSection} from 'sentry/views/settings/types';
 
-import type {ExperimentKey} from './experiments';
 import type {Integration, IntegrationProvider} from './integrations';
 import type {
   Route,
@@ -217,7 +215,6 @@ type CustomizationHooks = {
  */
 type AnalyticsHooks = {
   'analytics:init-user': AnalyticsInitUser;
-  'analytics:log-experiment': AnalyticsLogExperiment;
   'analytics:raw-track-event': AnalyticsRawTrackEvent;
   'metrics:event': MetricsEvent;
 };
@@ -319,7 +316,6 @@ type ReactHooks = {
     props: RouteContextInterface
   ) => React.ContextType<typeof RouteAnalyticsContext>;
   'react-hook:use-button-tracking': (props: ButtonProps) => () => void;
-  'react-hook:use-experiment': UseExperiment;
   'react-hook:use-get-max-retention-days': () => number | undefined;
 };
 
@@ -437,20 +433,6 @@ type AnalyticsRawTrackEvent = (
   }
 ) => void;
 
-/**
- * Trigger experiment observed logging.
- */
-type AnalyticsLogExperiment = (opts: {
-  /**
-   * The experiment key
-   */
-  key: ExperimentKey;
-  /**
-   * The organization. Must be provided for organization experiments.
-   */
-  organization?: Organization;
-}) => void;
-
 /**
  * Trigger recording a metric in the hook store.
  */