[server/session] remove json dumps around call_service
This backouts changeset b151beea9cb6. With call_service being
in-process and synchronous, there's no RPC use case.
* {
color: #000 !important;
}
div#popupLoginBox,
div#popupLoginBox,
img#logo, div.header,
#navColumnLeft, #navColumnRight,
#footer {
display: none
}
div#pageContent{
border: none;
}