[ES|QL] Reverts 218383 (elastic#219263)

## Summary

Reverts elastic#218383

Author: stratoula

src/platform/packages/shared/kbn-esql-validation-autocomplete/src/autocomplete/recommended_queries/templates.ts

@@ -115,21 +115,6 @@ export const getRecommendedQueries = ({
             ),
             queryString: `${fromCommand}\n  | STATS count = COUNT(*), min_timestamp = MIN(${timeField}) /* MIN(dateField) finds the earliest timestamp in the dataset. */ \n  | EVAL event_rate = count / DATE_DIFF("seconds", min_timestamp, NOW()) /* Calculates the event rate by dividing the total count of events by the time difference (in seconds) between the earliest event and the current time. */\n | KEEP event_rate`,
           },
-          {
-            label: i18n.translate(
-              'kbn-esql-validation-autocomplete.recommendedQueries.categorize.label',
-              {
-                defaultMessage: 'Detect change points',
-              }
-            ),
-            description: i18n.translate(
-              'kbn-esql-validation-autocomplete.recommendedQueries.categorize.description',
-              {
-                defaultMessage: 'Change point on count aggregation',
-              }
-            ),
-            queryString: `${fromCommand}\n | WHERE ${timeField} <=?_tend and ${timeField} >?_tstart\n | STATS count = COUNT(*) BY buckets = BUCKET(${timeField}, 50, ?_tstart, ?_tend) \n | CHANGE_POINT count ON buckets `,
-          },
           {
             label: i18n.translate(
               'kbn-esql-validation-autocomplete.recommendedQueries.lastHour.label',