remove the quotes around version string

Author: sankarpn

integration-tests/src/test/resources/OperatorIT.properties

@@ -10,4 +10,4 @@ waitTimePod=10
 weblogicImageTag = 12.2.1.3
 weblogicImageName = container-registry.oracle.com/middleware/weblogic
 OCR_SERVER="container-registry.oracle.com"
-DOMAIN_API_VERSION = "weblogic.oracle/v4"
+DOMAIN_API_VERSION = weblogic.oracle/v4