diff --git a/vscode/webviews/themes/visual-studio.css b/vscode/webviews/themes/visual-studio.css
index d75a1490fa95..1ba7c3e6f199 100644
--- a/vscode/webviews/themes/visual-studio.css
+++ b/vscode/webviews/themes/visual-studio.css
@@ -631,22 +631,3 @@ html[data-ide='VisualStudio'] blockquote {
     background: var(--vscode-textBlockQuote-background);
     border-color: var(--vscode-textBlockQuote-border);
 }
-
-
-html[data-ide='VisualStudio'] .model-selector-popover::-webkit-scrollbar {
-    width: 10px;
-    height: 8px;
-    background-color: transparent;
-}
-
-/* color-mix is not supported on VisualStudio webview */
-html[data-ide='VisualStudio'] .context-item-mention-node {
-    color: var(--vscode-inputOption-activeForeground);
-    background-color: var(--vscode-badge-background);
-    gap: 0.2rem;
-
-    .icon {
-        width: 1rem;
-        height: 1rem;
-    }
-}