remove explicit

Author: kai-waang

features/include/pcl/features/shot_omp.h

@@ -98,7 +98,7 @@ namespace pcl
          * \param nr_threads the number of hardware threads to use (0 sets the value back to automatic)
          * \param chunk_size PCL will use dynamic scheduling with this chunk size. Setting it too low will lead to more parallelization overhead. Setting it too high will lead to a worse balancing between the threads.
          */
-      explicit SHOTEstimationOMP (unsigned int nr_threads = 0, int chunk_size = 256)
+      SHOTEstimationOMP (unsigned int nr_threads = 0, int chunk_size = 256)
         : SHOTEstimation<PointInT, PointNT, PointOutT, PointRFT> (), chunk_size_(chunk_size)
       {
         setNumberOfThreads(nr_threads);