squash w/ startup/shutdown. Remove TODOs.

scripts/irods/paths.py

@@ -350,7 +350,6 @@ def _icommands_test_directory():
         _icommands_test_directory_cache = _irods_directory() / 'clients' / 'icommands' / 'test'
     return _icommands_test_directory_cache
 
-# TODO Nothing appears to use this or the functions which this is built upon.
 def icommands_test_directory():
     return str(_icommands_test_directory())
 
@@ -361,7 +360,6 @@ def _server_test_directory():
         _server_test_directory_cache = _irods_directory() / 'test' / 'bin'
     return _server_test_directory_cache
 
-# TODO Nothing appears to use this or the functions which this is built upon.
 def server_test_directory():
     return str(_server_test_directory())
 
@@ -437,16 +435,13 @@ def _agent_executable():
 def agent_executable():
     return str(_agent_executable())
 
-# TODO Rename to _delay_server_executable_cache
 _rule_engine_executable_cache = None
-# TODO Rename to _delay_server_executable
 def _rule_engine_executable():
     global _rule_engine_executable_cache
     if _rule_engine_executable_cache is None:
         _rule_engine_executable_cache = _server_bin_directory() / 'irodsDelayServer'
     return _rule_engine_executable_cache
 
-# TODO Rename to delay_server_executable
 def rule_engine_executable():
     return str(_rule_engine_executable())