remove counting nb slices by the unique values in slice order

Author: marcobarilari

src/batches/preproc/setBatchSTC.m

@@ -96,7 +96,7 @@
                   false, opt.verbosity);
   end
 
-  nbSlices = numel(unique(sliceOrder));
+  nbSlices = numel(sliceOrder);
 
   temporal.st.nslices = nbSlices;
   temporal.st.tr = repetitionTime;