Don't remove settings and autosave patch before overwriting it with new file.

src/patch.cpp

@@ -253,7 +253,6 @@ void Manager::saveAutosave() {
 
 	json_dumpf(rootJ, file, JSON_INDENT(2));
 	std::fclose(file);
-	system::remove(patchPath);
 	system::rename(tmpPath, patchPath);
 }
 

src/settings.cpp

@@ -584,7 +584,6 @@ void save(std::string path) {
 
 	json_dumpf(rootJ, file, JSON_INDENT(2));
 	std::fclose(file);
-	system::remove(path);
 	system::rename(tmpPath, path);
 }