grunt: cleanup no-edge targets
grunt: cleanup no-edge targets

edge_sdp.js moved out into the sdp module quite a while ago.

webrtc/adapter,Acidburn0zzz/adapter,jan-ivar/adapter,xdumaine/adapter,jan-ivar/adapter,xdumaine/adapter,webrtc/adapter,Acidburn0zzz/adapter,Acidburn0zzz/adapter