chore: clean up misc-utils

 - remove unnecessary non-caching-servers: use Chrome's Disable Cache
   feature in F12 (developer) mode
 - fix flake8 warnings in syll_parse.py

misc-utils/README.md

@@ -31,18 +31,3 @@ or
 
     readalongs g2p file-tok-syll.xml file-g2p.xml
     readalongs align file-g2p.xml file.wav output
-
-### `non-caching-server.py`
-
-This script is intended to mitigate an issue with Mac's where the client might
-cache files and refuse to fetch them again even if they were modified on disk,
-even with a hard reload. This is an issue when, for example, testing a read
-along that you just created using
-
-    cd read-alongs-dir && python3 -m http.server
-
-If you modify the read along and want to reload it without having to restart the
-http server, on some OS's that works fine, but not on all OS's. If you encouter
-this problem, using this command instead:
-
-    cd read-alongs-dir && non-caching-server.py