refactor: Removes the deprecated GENERIC_CHART_AXES feature flag (#26372)

superset-frontend/plugins/plugin-chart-echarts/src/BigNumber/BigNumberTotal/controlPanel.ts

@@ -23,13 +23,11 @@ import {
   D3_TIME_FORMAT_OPTIONS,
   Dataset,
   getStandardizedControls,
-  sections,
 } from '@superset-ui/chart-controls';
 import { headerFontSize, subheaderFontSize } from '../sharedControls';
 
 export default {
   controlPanelSections: [
-    sections.legacyRegularTime,
     {
       label: t('Query'),
       expanded: true,