Fix leftover lint errors/warnings (#4316)

src/plugins/plot/barGraph/BarGraphCompositionPolicy.js

@@ -39,10 +39,6 @@ export default function BarGraphCompositionPolicy(openmct) {
         return metadata.values().length > 0 && hasAggregateDomainAndRange(metadata);
     }
 
-    function hasNoChildren(parentObject) {
-        return parentObject.composition && parentObject.composition.length < 1;
-    }
-
     return {
         allow: function (parent, child) {
             if ((parent.type === BAR_GRAPH_KEY)

src/plugins/plot/chart/MctChart.vue

@@ -19,6 +19,9 @@
  this source code distribution or the Licensing information page available
  at runtime from the About dialog for additional information.
 -->
+
+<!-- eslint-disable vue/no-v-html -->
+
 <template>
 <div class="gl-plot-chart-area">
     <span v-html="canvasTemplate"></span>