MTA-2308: [CS] Wishlist module functional tests maintenance

- Remove unnecessary tags

Author: Dmytro Bursak

dev/tests/functional/tests/app/Magento/Wishlist/Test/TestCase/AddProductToWishlistEntityTest.xml

@@ -14,7 +14,6 @@
             <constraint name="Magento\Wishlist\Test\Constraint\AssertProductIsPresentInCustomerBackendWishlist" />
         </variation>
         <variation name="AddProductToWishlistEntityTestVariation2">
-            <data name="tag" xsi:type="string">to_maintain:yes</data>
             <data name="product" xsi:type="string">catalogProductVirtual::default</data>
             <constraint name="Magento\Wishlist\Test\Constraint\AssertAddProductToWishlistSuccessMessage" />
             <constraint name="Magento\Wishlist\Test\Constraint\AssertProductIsPresentInWishlist" />

dev/tests/functional/tests/app/Magento/Wishlist/Test/TestCase/ViewProductInCustomerWishlistOnBackendTest.xml

@@ -20,7 +20,6 @@
             <constraint name="Magento\Bundle\Test\Constraint\AssertBundleProductInCustomerWishlistOnBackendGrid" />
         </variation>
         <variation name="ViewProductInCustomerWishlistOnBackendTestVariation4">
-            <!--<data name="issue" xsi:type="string">Bug: MAGETWO-34633</data>-->
             <data name="product" xsi:type="string">downloadableProduct::with_two_separately_links</data>
             <constraint name="Magento\Downloadable\Test\Constraint\AssertDownloadableProductInCustomerWishlistOnBackendGrid" />
         </variation>