sse: remove unused src->dest chaining checks
sse: remove unused src->dest chaining checks

MOXfiles/orc,ahmedammar/platform_external_gst_liborc,Distrotech/orc,jpakkane/orc,Distrotech/orc,mojaves/orc,Distrotech/orc,mojaves/orc,okuoku/nmosh-orc,jpakkane/orc,jpakkane/orc,okuoku/nmosh-orc,ijsf/OpenWebRTC-orc,mojaves/orc,ijsf/OpenWebRTC-orc,okuoku/nmosh-orc,ijsf/OpenWebRTC-orc,MOXfiles/orc,MOXfiles/orc,ahmedammar/platform_external_gst_liborc