B2B-2677: [MediaGallery]Implement data caching for GraphQL results on resolver level

- Remove unused cache tag from expected cache tags

Author: danmooney2

dev/tests/api-functional/testsuite/Magento/GraphQl/Catalog/ResolverCache/MediaGalleryTest.php

@@ -466,7 +466,6 @@ private function getExpectedCacheTags(ProductInterface $product): array
         $cacheIdPrefix = $this->graphQlResolverCache->getLowLevelFrontend()->getOption('cache_id_prefix');
 
         return [
-            $cacheIdPrefix . strtoupper(ResolverCacheIdentity::CACHE_TAG),
             $cacheIdPrefix . strtoupper(ResolverCacheIdentity::CACHE_TAG . '_' . $product->getSku()),
             $cacheIdPrefix . strtoupper(GraphQlResolverCache::CACHE_TAG),
             $cacheIdPrefix . 'MAGE',