Removed old link to article that was removed.

Author: jonat123

14/umbraco-cms/fundamentals/backoffice/property-editors/built-in-umbraco-property-editors/block-editor/README.md

@@ -14,10 +14,6 @@ Umbraco CMS currently ships with two Block Editors: the Block List and the Block
 
 ## Customizing Block Editors
 
-### [Build custom views for blocks](build-custom-view-for-blocks.md)
-
-Learn how to create custom views for the blocks used in your Block Grid or Block List property editors.
-
 ### [Configure Block Editor label properties](label-property-configuration.md)
 
 Get an overview of available configurations for the label properties.