[FIX] Remove all invited users when create a channel (#1814)

Co-authored-by: Diego Mello <diegolmello@gmail.com>

app/presentation/UserItem.js

@@ -44,7 +44,9 @@ const UserItem = ({
 }) => {
 	const longPress = ({ nativeEvent }) => {
 		if (nativeEvent.state === State.ACTIVE) {
-			onLongPress();
+			if (onLongPress) {
+				onLongPress();
+			}
 		}
 	};
 

app/views/CreateChannelView.js

@@ -208,10 +208,7 @@ class CreateChannelView extends React.Component {
 	}
 
 	removeUser = (user) => {
-		const { users, removeUser } = this.props;
-		if (users.length === 1) {
-			return;
-		}
+		const { removeUser } = this.props;
 		removeUser(user);
 	}
 
@@ -285,6 +282,7 @@ class CreateChannelView extends React.Component {
 				username={item.name}
 				onPress={() => this.removeUser(item)}
 				testID={`create-channel-view-item-${ item.name }`}
+				icon='check'
 				baseUrl={baseUrl}
 				user={user}
 				theme={theme}