remove config flag

Author: jeffjennings

scripts/execute-convert.py

@@ -27,8 +27,6 @@ def run_command(command, verbose=1):
         "jupyter_book",
         "build",
         ".",
-        "--config",
-        "_config.yml",
         "--toc",
         "_toc.yml",
     ]
@@ -46,8 +44,6 @@ def run_command(command, verbose=1):
         "jupyter_book",
         "build",
         f"{slug}.ipynb",
-        "--config",
-        "_config.yml",
     ]
     run_command(command)