Remove thread sleeps that were needed for old Julia verisions on macO…

…S ARM (#2)

src/grid_nhs.jl

@@ -147,10 +147,6 @@ function initialize!(neighborhood_search::GridNeighborhoodSearch, coords_fun)
 
     empty!(hashtable)
 
-    # This is needed to prevent lagging on macOS ARM.
-    # See https://github.com/JuliaSIMD/Polyester.jl/issues/89
-    # ThreadingUtilities.sleep_all_tasks()
-
     for particle in 1:nparticles(neighborhood_search)
         # Get cell index of the particle's cell
         cell = cell_coords(coords_fun(particle), neighborhood_search)
@@ -187,10 +183,6 @@ function update!(neighborhood_search::GridNeighborhoodSearch, coords_fun)
     # `collect` the keyset to be able to loop over it with `@threaded`.
     mark_changed_cell!(neighborhood_search, hashtable, coords_fun, Val(threaded_nhs_update))
 
-    # This is needed to prevent lagging on macOS ARM.
-    # See https://github.com/JuliaSIMD/Polyester.jl/issues/89
-    # ThreadingUtilities.sleep_all_tasks()
-
     # Iterate over all marked cells and move the particles into their new cells.
     for thread in 1:Threads.nthreads()
         # Only the entries `1:cell_buffer_indices[thread]` are initialized for `thread`.