Fix formatting issue from previous merge

Author: lossyrob

pystac/__init__.py

@@ -46,8 +46,7 @@ class STACError(Exception):
     extensions.eo.EO_EXTENSION_DEFINITION, extensions.label.LABEL_EXTENSION_DEFINITION,
     extensions.pointcloud.POINTCLOUD_EXTENSION_DEFINITION,
     extensions.projection.PROJECTION_EXTENSION_DEFINITION, extensions.sar.SAR_EXTENSION_DEFINITION,
-    extensions.sat.SAT_EXTENSION_DEFINITION, extensions.single_file_stac.SFS_EXTENSION_DEFINITION,
-    extensions.scientific.SCIENTIFIC_EXTENSION_DEFINITION,
+    extensions.sat.SAT_EXTENSION_DEFINITION, extensions.scientific.SCIENTIFIC_EXTENSION_DEFINITION,
     extensions.single_file_stac.SFS_EXTENSION_DEFINITION,
     extensions.timestamps.TIMESTAMPS_EXTENSION_DEFINITION,
     extensions.version.VERSION_EXTENSION_DEFINITION, extensions.view.VIEW_EXTENSION_DEFINITION