Revert #5991

[graceguo-supercat]

#5991 caused CI tests failed for a few days.

@arpit-agarwal
@michellethomas @williaster @mistercrunch

[codecov-io]

Codecov Report

Merging #6035 into master will increase coverage by 0.07%.
The diff coverage is 0%.

@@            Coverage Diff            @@
##           master   #6035      +/-   ##
=========================================
+ Coverage   64.63%   64.7%   +0.07%     
=========================================
  Files         449     448       -1     
  Lines       23823   23773      -50     
  Branches     2639    2639              
=========================================
- Hits        15398   15383      -15     
+ Misses       8412    8377      -35     
  Partials       13      13

Impacted Files	Coverage Δ
superset/cli.py	53.6% <ø> (+3.6%)	⬆️
superset/views/core.py	73.74% <0%> (-0.38%)	⬇️
superset/connectors/sqla/models.py	81.13% <0%> (+0.75%)	⬆️
superset/db_engine_specs.py	55.7% <0%> (+0.87%)	⬆️

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