remove else condition since our sdk version will be always 21 or higher, that is the lollipop version

Author: tommasini

android/src/main/java/com/reactnativecommunity/webview/RNCWebViewClient.java

@@ -62,8 +62,6 @@ public void onPageFinished(WebView webView, String url) {
         if (cookies != null) {
             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                 CookieManager.getInstance().flush();
-            } else {
-                CookieSyncManager.getInstance().sync();
             }
         }