Following what seems to be done in the main branch

Author: jmitrevs

hls4ml/model/optimizer/__init__.py

@@ -60,6 +60,7 @@
         'fuse_consecutive_batch_normalization',
         'merge_linear_activation',
         'fuse_batch_normalization',
+        'eliminate_linear_activation',
         # The ones above here need to be before infer_precision_types
         'infer_precision_types',
         'channels_last_converter',