performance: remove dead code

Author: N-Maas

mt-kahypar/io/hypergraph_io.cpp

@@ -92,30 +92,6 @@ namespace mt_kahypar::io {
     const HyperedgeID num_hyperedges;
   };
 
-  bool isSinglePinHyperedge(char* mapped_file,
-                            size_t pos,
-                            const size_t length,
-                            const bool has_hyperedge_weights) {
-    ASSERT(!is_line_ending(mapped_file, pos), "Empty line where hyperedge was expected");
-    ASSERT(mapped_file[pos] != ' ', "Line may not start with space");
-    ++pos;
-
-    size_t num_spaces = 0;
-    for ( ; pos < length; ++pos ) {
-      if (is_line_ending(mapped_file, pos)) {
-        break;
-        // shift the check by -1 so that we can tolerate a space at the end of the line
-      } else if ( mapped_file[pos - 1] == ' ' ) {
-        ++num_spaces;
-      }
-
-      if ( num_spaces == 2 ) {
-        break;
-      }
-    }
-    return has_hyperedge_weights ? num_spaces == 1 : num_spaces == 0;
-  }
-
   struct HyperedgeReadResult {
     HyperedgeReadResult() :
       num_removed_single_pin_hyperedges(0),