FIX: Remove unused dimension edit in apply_core_strided_[cf]

The original design was that the apply cores were "resumable", and thus
we'd put the dimension "back in order" when exiting the method.

However, this is not in use today (and loop break from FoldWhile also
bypasses this tail code, anyway), so just remove this unused line.

Author: bluss

src/zip/mod.rs

@@ -781,7 +781,6 @@ where
 
             index_ = self.dimension.next_for(index);
         }
-        self.dimension[unroll_axis] = inner_len;
         FoldWhile::Continue(acc)
     }
 
@@ -812,7 +811,6 @@ where
                 }
             }
         }
-        self.dimension[unroll_axis] = inner_len;
         FoldWhile::Continue(acc)
     }