MAGETWO-32833: Soap/Rest tests fail on CE version

- Remove assertion for exact number of attributes. The attributes can change
  depending on what modules are installed

dev/tests/api-functional/testsuite/Magento/Customer/Api/CustomerMetadataTest.php

@@ -157,8 +157,6 @@ class CustomerMetadataTest extends WebapiAbstract
 
         $attributeMetadata = $this->_webApiCall($serviceInfo);
 
-        $this->assertCount(23, $attributeMetadata);
-
         $firstName = $this->getAttributeMetadataDataProvider()[Customer::FIRSTNAME][1];
         $validationResult = $this->checkMultipleAttributesValidationRules($firstName, $attributeMetadata);
         list($firstName, $attributeMetadata) = $validationResult;