Revert "feat(prejoin_page) Add settings buttons" (#5424)

This reverts commit 08f55ccb94.

react/features/base/toolbox/components/ToolboxButtonWithIcon.js

@@ -1,66 +0,0 @@
-// @flow
-
-import React from 'react';
-import { Icon } from '../../icons';
-
-type Props = {
-
-    /**
-     * The decorated component (ToolboxButton).
-     */
-    children: React$Node,
-
-    /**
-     * Icon of the button.
-     */
-    icon: Function,
-
-    /**
-     * Flag used for disabling the small icon.
-     */
-    iconDisabled: boolean,
-
-    /**
-     * Click handler for the small icon.
-     */
-    onIconClick: Function,
-
-    /**
-     * Additional styles.
-     */
-    styles?: Object,
-}
-
-/**
- * Displayes the `ToolboxButtonWithIcon` component.
- *
- * @returns {ReactElement}
- */
-export default function ToolboxButtonWithIcon({
-    children,
-    icon,
-    iconDisabled,
-    onIconClick,
-    styles
-}: Props) {
-    const iconProps = {};
-
-    if (iconDisabled) {
-        iconProps.className = 'settings-button-small-icon settings-button-small-icon--disabled';
-    } else {
-        iconProps.className = 'settings-button-small-icon';
-        iconProps.onClick = onIconClick;
-    }
-
-    return (
-        <div
-            className = 'settings-button-container'
-            styles = { styles }>
-            { children }
-            <Icon
-                { ...iconProps }
-                size = { 9 }
-                src = { icon } />
-        </div>
-    );
-}