Remove temporary datepicker position fix as it is no longer required

changelogs/unreleased/chore-styles-removal.yml

+---
+title: Remove temporary datepicker position fix as it is no longer required
+merge_request: 31836
+author: Arun Kumar Mohan
+type: removed

ee/app/assets/stylesheets/components/audit_logs/date_range_field.scss

 .audit-controls {
-  // TODO: Remove this once https://gitlab.com/gitlab-org/gitlab-ui/-/issues/681 is resolved
-  .gl-datepicker-theme.pika-single {
-    position: absolute !important;
-  }
-
   .gl-form-input {
     background-color: $white;
   }