Remove obsolete 'not_branches' setting from gps-raspbian

Author: zware

master/custom/workers.py

@@ -182,8 +182,6 @@ def get_workers(settings):
             tags=['linux', 'unix', 'raspbian', 'debian', 'armv6', 'armv7l',
                   'aarch32', 'arm'],
             parallel_tests=4,
-            # Raspbian Debian bullseye ships with 3.9, bookworm with 3.11.
-            not_branches=['3.7', '3.8'],
         ),
         cpw(
             name="stan-raspbian",