Remove StreamSplitter (redundant with tritium.Splitter)

Author: milanofthe

src/pathsim_chem/process/__init__.py

@@ -11,6 +11,5 @@
 from .multicomponent_flash import *
 from .pfr import *
 from .mixer import *
-from .stream_splitter import *
 from .valve import *
 from .heater import *