neatogen: [nfc] remove unused 'smooth_pivots'

The only code using this was removed in
0e60b06ea9daebe0ce6e46f7fe8aa9d090617209.

diff --git a/lib/neatogen/stress.c b/lib/neatogen/stress.c
index cb3996b273da353808824126f5be6b83ee158375..24bf9f096fc5614bb974fe1a1986bf3b187195f8 100644 (file)
--- a/lib/neatogen/stress.c
+++ b/lib/neatogen/stress.c
@@ -28,9 +28,6 @@
                                   by d_{ij}^{-2} otherwise, they are normalized by d_{ij}^{-1}
                                 */
 
- /* relevant when using sparse distance matrix not within subspace */
-#define smooth_pivots true
-
 /* dimensionality of subspace; relevant 
  * when optimizing within subspace) 
  */