Don't automatically set the time from Python

[jp-bennett]

The Python MO is to do as little as possible beyond what the user has intentionally instructed. So don't try to set the time automatically.

[jp-bennett]

Tangentially related to firmware/#4589

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 61.63%. Comparing base (bcce568) to head (5c312be).
Report is 6 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #663      +/-   ##
==========================================
- Coverage   61.67%   61.63%   -0.05%     
==========================================
  Files          24       24              
  Lines        3593     3589       -4     
==========================================
- Hits         2216     2212       -4     
  Misses       1377     1377              

Flag	Coverage Δ
unittests	61.63% <ø> (-0.05%)	⬇️

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[ianmcorvidae]

Seems alright to me. I'll merge it and add an extra commit to make --no-time a no-op (with just this change it'll still send a position, just not with a time). We can add a --set-time that uses the new admin command in 2.5+