removed two unnecessary commented variables

internal_variables.txt

@@ -248,10 +248,6 @@ ${CONTENT_TYPE_OCTET}    application/octet-stream
 
 ### SOL005 VNFPackageManagement-API ###
 
-#these variables are not being used in the robot code, should we ignore them from GUI as well?
-#${NFVO_VNFD_PLAIN}
-#${NFVO_VNFD_ZIP}
-
 #${response}    httpresponse
 #${origResponse}    httpresponse
 #${MOCK_SERVER_JAR}    ../../../bin/mockserver-netty-5.5.0-jar-with-dependencies.jar