removed unused variables

Author: sooyoung-cha

src/clustering/Clustering.cpp

@@ -76,10 +76,8 @@ Clustering::Clustering(const std::string &seqDB, const std::string &seqDBIndex,
             mappingStream.open(seqDB + ".lookup");
 
             line = "";
-            size_t lookupOrder = 0;
             while (std::getline(mappingStream, line)) {
                 std::vector<std::string> split = Util::split(line, "\t");
-                unsigned int key = strtoul(split[0].c_str(), NULL, 10);
                 setkey = strtoul(split[2].c_str(), NULL, 10);
                 sourceOffsets[setkey]++;
                 sourceOffsetsDecrease[setkey]++;