Revert "chore(metrics): Collect test metric to validate sleep clock drift fix (#127562)" (#127753)

Reverts #127562, which removes the temporary `issues.list.issue-clicked`
test metric from the issue stream row click handler. The metric was only
meant to run briefly to check the SDK's sleep clock drift fix.

Author: Lms24

static/app/components/stream/group.tsx

@@ -1,6 +1,5 @@
 import {Fragment, useCallback, useMemo, useRef} from 'react';
 import styled from '@emotion/styled';
-import * as Sentry from '@sentry/react';
 import type {LocationDescriptor} from 'history';
 
 import InteractionStateLayer from '@sentry/scraps/interactionStateLayer';
@@ -540,8 +539,6 @@ export function StreamGroup({
   );
 
   const onClick = (e: React.MouseEvent<HTMLTableRowElement>) => {
-    Sentry.metrics.count('issues.list.issue-clicked', 1);
-
     if (displayReprocessingLayout) {
       return;
     }