How to remove the IOS accessory bars in ionic 3

HI guys !! I Wrapped a website in ionic 3 using inappbrowser
I couldn’t hide the accessory bars in IOS.
In Android it looks perfect.
I tried
keyboard.hideKeyboardAccessoryBar(false); using ionic keyboard plugin. But all in vain
I did this in app.ts file
Also tried every method already asked in Ionic forum.
Please I need to find this solution sooner.
Thanks in advance