message: simplify: Simplify (ha!) seam condition
  The seams are symmetrical and the condition to verify that was
  redundantly checking the remap match in both directions; the resulting
  comparison was tautological.
diff: @@ -291,8 +291,7 @@ static void classifyVertices(unsigned char* result, unsigned int* loop, unsigned
  if (openiv != ~0u && openiv != i && openov != ~0u && openov != i &&
  openiw != ~0u && openiw != w && openow != ~0u && openow != w)
  {
  - if (remap[openiv] == remap[openow] && remap[openov] == remap[openiw] &&
  - remap[openiw] == remap[openov] && remap[openow] == remap[openiv])
  + if (remap[openiv] == remap[openow] && remap[openov] == remap[openiw])
  {
  result[i] = Kind_Seam;
  }
  