Delete lpad_append_wflow.py

scripts/lpad_append_wflow.py

-from fireworks import Workflow, LaunchPad
-import sys
-
-fw_ids = None
-detour = False
-pull_spec_mods = True
-
-for arg in sys.argv:
-    if '--help' in arg:
-        print('usage: '+sys.argv[0]+' --fw_ids=<comma-separated list>'
-              +' <workflow file>')
-    if '--fw_ids' in arg:
-        fw_ids = arg.split('=')[1].split(',')
-        fw_ids = [int(fw_id.strip()) for fw_id in fw_ids]
-    if '--detour' in arg:
-        detour = True
-    if '--no_pull_spec_mods' in arg:
-        pull_spec_mods = False
-
-if fw_ids is not None:
-    wflow = Workflow.from_file(sys.argv[-1])
-    launchpad = LaunchPad()
-    launchpad.append_wf(wflow, fw_ids, 
-                        detour=detour, pull_spec_mods=pull_spec_mods)