Remove pointer cursor from sparkline chart in MR widget deployment

app/assets/stylesheets/framework/memory_graph.scss

 .memory-graph-container {
   svg {
     background: $white-light;
-    cursor: pointer;
-
-    &:hover {
-      box-shadow: 0 0 4px $gray-darkest inset;
-    }
+    border: 1px solid $gray-200;
   }
 
   path {

changelogs/unreleased/31390-remove-pointer-cursor-from-memory-usage-chart.yml

+---
+title: Remove pointer cursor from MemoryUsage chart on MR widget deployment
+merge_request: 18599
+author:
+type: fixed