First,you should find custome_home.phtml block name layout files or from backedn,
then using <referenceBlock name="BlockName" remove="true"/> from lyaout.
by add this code Design tab at CMS home page at backendThere are two way,you can do this:
From admin
or goto app/design/frontend/[VendorTheme]/[ThemeName]/Magento_Cms/layout/cms_index_index.xmlGoto admin>Content>Page> then select your cms page>
and after that add below at code Design tab at your CMS home page at backend
<referenceContainer name="ParentContainerName">
<referenceBlock name="BlocknameatLyaout" remove="true"/></referenceContainer>
From Layout file:
Goto app/design/frontend/[VendorTheme]/[ThemeName]/Magento_Cms/layout/cms_index_index.xml and below code
<?xml version="1.0"?>
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
<body>
<!-- add this code for remove block -->
<referenceBlock name="BlockName" remove="true"/>
</body>
</page>