Revert "LegendIcon: only render color picker when the props change (#33141)" (#33313)

This reverts commit af46bbf654.

packages/grafana-ui/src/components/VizLegend/VizLegendSeriesIcon.tsx

@@ -8,8 +8,10 @@ interface Props {
   onColorChange: (color: string) => void;
 }
 
-export const VizLegendSeriesIcon = React.memo<Props>(
+/**
-  ({ disabled, color, onColorChange }) => {
+ * @internal
+ */
+export const VizLegendSeriesIcon: React.FunctionComponent<Props> = ({ disabled, color, onColorChange }) => {
   return disabled ? (
     <SeriesIcon color={color} />
   ) : (
@@ -25,12 +27,6 @@ export const VizLegendSeriesIcon = React.memo<Props>(
       )}
     </SeriesColorPicker>
   );
-  },
+};
-  // areEqual -- return true if they are the same.
-  // onColorChange updates frequently, so ignore that
-  (prevProps, nextProps) => {
-    return prevProps.color === nextProps.color && prevProps.disabled === nextProps.disabled;
-  }
-);
 
 VizLegendSeriesIcon.displayName = 'VizLegendSeriesIcon';