Hide field from GravityView's Edit Entry page when the Edit Entry layout is left empty in the View editor

gk_custom_remove_field.php

<?php // DO NOT COPY THIS LINE

add_filter( 'gravityview/edit_entry/form_fields', function ( $gf_fields, $edit_entry_fields, $form, $view_id ) {
	if ( 1 !== $view_id ) { // Replace 1 with the View ID you want to target.
		return $gf_fields;
	}

	foreach ( $gf_fields as $index => $field ) {
		if ( 2 === $field->id ) { // Replace 2 with the Field ID you want to hide.
			unset( $gf_fields[ $index ] );
		}
	}

	return $gf_fields;
}, 10, 4 );