[iOS] Don't show google signin button on iOS <= 10

It doesn't seem to work properly.

react/features/recording/components/LiveStream/GoogleSigninForm.native.js

@@ -1,7 +1,7 @@
 // @flow
 
 import React, { Component } from 'react';
-import { Text, View } from 'react-native';
+import { Platform, Text, View } from 'react-native';
 import { connect } from 'react-redux';
 
 import { translate } from '../../../base/i18n';
@@ -74,6 +74,18 @@ class GoogleSigninForm extends Component<Props> {
      * @inheritdoc
      */
     componentDidMount() {
+        if (Platform.OS === 'ios') {
+            const majorVersionIOS = parseInt(Platform.Version, 10);
+
+            if (majorVersionIOS <= 10) {
+                // Disable it on iOS 10 and earlier, since it doesn't work
+                // properly.
+                this._setApiState(GOOGLE_API_STATES.NOT_AVAILABLE);
+
+                return;
+            }
+        }
+
         googleApi.hasPlayServices()
             .then(() => {
                 googleApi.configure({