Delete debug line

src/filewriter.cpp

@@ -451,7 +451,6 @@ void IMUFileWriter::write(uint8_t *sample, size_t size, uint8_t *imu_data) {
     uint8_t *imu_data_cur(imu_data);
 
     if(!(imu_data[0]==0xFE) && (imu_data[0]>= 2)) {
-        std::cerr << "Pantoufle" << std::endl;
         for(int i=1; i<size-1; i++)
         {
             DecodeMessage(imu_data[i]);