🪟 🧹 Remove unused Popout component + remove unused onClick prop from …

…Overlay (#9264)

Co-authored-by: Vladimir <[email protected]>

airbyte-webapp/src/components/ui/Overlay/Overlay.module.scss

@@ -8,8 +8,5 @@
   right: 0;
   bottom: 0;
   z-index: z-indices.$overlay;
-
-  &.dark {
-    background: colors.$overlay-background;
-  }
+  background: colors.$overlay-background;
 }

airbyte-webapp/src/components/ui/Overlay/Overlay.tsx

@@ -1,20 +1,5 @@
-import classNames from "classnames";
-
 import styles from "./Overlay.module.scss";
 
-interface OverlayProps {
-  onClick?: React.MouseEventHandler<HTMLDivElement>;
-  variant?: "dark" | "transparent";
-}
-
-export const Overlay: React.FC<OverlayProps> = ({ variant = "dark", onClick }) => (
-  <div
-    className={classNames(styles.container, {
-      [styles.dark]: variant === "dark",
-    })}
-    role={onClick ? "button" : undefined}
-    onClick={onClick}
-    aria-hidden="true"
-    data-testid="overlayContainer"
-  />
+export const Overlay: React.FC = () => (
+  <div className={styles.container} aria-hidden="true" data-testid="overlayContainer" />
 );