To customize the product creation form, take the following steps:
In your custom module, add an empty product_form.xml
in the <your_module_dir>/view/adminhtml/ui_component/
directory.
Your product_form.xml
is merged with the same files from the other modules. So there is no need to copy their content, you only need to define changes. Even if you want to customize the existing entities, you only have to mention those options, the values of which are customized.
To customize an existing entity, declare only those options, the values of which are customized, do not copy its entire configuration.
To delete an existing field, or field set, in your product_form.xml use the following construction:
...
<fieldset name="fieldset_name">
<argument name="data" xsi:type="array">
<item name="disabled" xsi:type="boolean">true</item>
</argument>
</fieldset>
...
For reference, view the product form configuration files of the Magento modules: