Remove “help us keep magento healthy report all bugs” from footer in Magento 2

just create the following folder & file

app/design/frontend/Vendor/theme/Magento_Theme/layout/default.xml

add following code in default.xml

<?xml version=”1.0″?>
<page xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance” xsi:noNamespaceSchemaLocation=”../../../../../vendor/magento/framework/Module/etc/module.xsd”>
<referenceBlock name=”report.bugs” remove=”true” />
</page>