fix unused & wrongly-placed instructions

include/MainWindow.h

@@ -28,7 +28,6 @@ class ProgressThread : public QThread
     void run() {
         unsigned int progress = 0;
         uint64_t processed = 0;
-        int finished = 0;
         const int nbthreads = _s.getNbThreads();
         const struct ThreadData* td = _s.getThreadsData();
 

src/core/Statsgen.cpp

@@ -127,10 +127,10 @@ int Statsgen::generate_stats() {
 			cerr << "[ERROR] unable to join," << rc << endl;
 			exit(-1);
 		}
-		finished++;
 		if(i >= 1){
 			td[0] += td[i];
 		}
+		finished++;
 	}
 
 	if (!td[0].total_counter) {