chore(dataset): remove dataset origin field

[tianweidut]

Description

• depends on: chore(dataset): remove useless iterable builder #2019
• changes: dataset origin field is useless, remove it

Modules

• Python-SDK

Checklist

• run code format and lint check
• add unit test
• add necessary doc

[codecov]

Codecov Report

Merging #2020 (6b0adac) into main (aef24af) will increase coverage by 8.53%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##               main    #2020      +/-   ##
============================================
+ Coverage     81.92%   90.46%   +8.53%     
============================================
  Files           411       98     -313     
  Lines         21307    10591   -10716     
  Branches       1214        0    -1214     
============================================
- Hits          17456     9581    -7875     
+ Misses         3302     1010    -2292     
+ Partials        549        0     -549     

Flag	Coverage Δ
controller	?
standalone	90.46% <100.00%> (-0.02%)	⬇️
unittests	90.46% <100.00%> (-0.02%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
client/starwhale/base/type.py	100.00% <ø> (ø)
client/starwhale/core/dataset/tabular.py	97.23% <100.00%> (-0.38%)	⬇️

... and 313 files with indirect coverage changes

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[tianweidut]

cc @waynelwz

[anda-ren]

LGTM