fix: eslint error in radial bar chart

Author: 0xJacky

app/src/components/Chart/RadialBarChart.vue

@@ -78,7 +78,6 @@ const chartOptions = computed(() => ({
     </p>
     <VueApexCharts
       v-if="centerText"
-      ref="refContainer"
       class="radialBar"
       type="radialBar"
       height="205"