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

superset-frontend/plugins/plugin-chart-echarts/src/MixedTimeseries/controlPanel.tsx

@@ -17,7 +17,7 @@
  * under the License.
  */
 import React from 'react';
-import { ensureIsArray, hasGenericChartAxes, t } from '@superset-ui/core';
+import { ensureIsArray, t } from '@superset-ui/core';
 import { cloneDeep } from 'lodash';
 import {
   ControlPanelConfig,
@@ -284,14 +284,11 @@ function createAdvancedAnalyticsSection(
 
 const config: ControlPanelConfig = {
   controlPanelSections: [
-    sections.genericTime,
-    hasGenericChartAxes
-      ? {
-          label: t('Shared query fields'),
-          expanded: true,
-          controlSetRows: [['x_axis'], ['time_grain_sqla']],
-        }
-      : null,
+    {
+      label: t('Shared query fields'),
+      expanded: true,
+      controlSetRows: [['x_axis'], ['time_grain_sqla']],
+    },
     createQuerySection(t('Query A'), ''),
     createAdvancedAnalyticsSection(t('Advanced analytics Query A'), ''),
     createQuerySection(t('Query B'), '_b'),

superset-frontend/plugins/plugin-chart-echarts/src/MixedTimeseries/index.ts

@@ -16,12 +16,7 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-import {
-  AnnotationType,
-  Behavior,
-  hasGenericChartAxes,
-  t,
-} from '@superset-ui/core';
+import { AnnotationType, Behavior, t } from '@superset-ui/core';
 import buildQuery from './buildQuery';
 import controlPanel from './controlPanel';
 import transformProps from './transformProps';
@@ -60,13 +55,9 @@ export default class EchartsTimeseriesChartPlugin extends EchartsChartPlugin<
         ],
         category: t('Evolution'),
         credits: ['https://echarts.apache.org'],
-        description: hasGenericChartAxes
-          ? t(
-              'Visualize two different series using the same x-axis. Note that both series can be visualized with a different chart type (e.g. 1 using bars and 1 using a line).',
-            )
-          : t(
-              'Visualize two different time series using the same x-axis. Note that each time series can be visualized differently (e.g. 1 using bars and 1 using a line).',
-            ),
+        description: t(
+          'Visualize two different series using the same x-axis. Note that both series can be visualized with a different chart type (e.g. 1 using bars and 1 using a line).',
+        ),
         supportedAnnotationTypes: [
           AnnotationType.Event,
           AnnotationType.Formula,
@@ -74,7 +65,7 @@ export default class EchartsTimeseriesChartPlugin extends EchartsChartPlugin<
           AnnotationType.Timeseries,
         ],
         exampleGallery: [{ url: example }],
-        name: hasGenericChartAxes ? t('Mixed Chart') : t('Mixed Time-Series'),
+        name: t('Mixed Chart'),
         thumbnail,
         tags: [
           t('Advanced-Analytics'),