Bug#1121857: pywws: please drop the obsolete & unused build-dependency on python3-tz

[Alexandre Detiste]

Hi Thorsten,

Please also drop the build-dependency from d/control

The last upload contains no change
   
https://salsa.debian.org/debian-iot-team/pywws/-/commit/9c30f16da1ef79f946a3ead0334e7e3131c74cd4

Greetings
Alexandre