Remove redundant try/except DEBUG block in sta2rest.py

[Prinxeeee]

Problem
DEBUG is already imported from app on the line above the block:

from app import AUTHORIZATION, DEBUG, NETWORK, VERSION, VERSIONING

try:
    DEBUG = DEBUG  # does nothing
except:
    DEBUG = 0      # never reached

DEBUG is always defined at this point — the try/except can never raise, making the entire block dead code.

Change

• sta2rest.py: removed the 4-line try/except DEBUG block

Notes

• No behavior change