removing deprecated code from simple_plotly

[KS-HTK]

This PR is the second part to #2469 . It removes the deprecated code and deprecation warnings
And it will be merged one release after the release containing #2469

This should be merged pandapower at any release after 3.1 but before 4.0.0

[codecov]

Codecov Report

Attention: Patch coverage is 7.14286% with 26 lines in your changes missing coverage. Please review.

Project coverage is 75.45%. Comparing base (d453890) to head (e23f71c).

Files with missing lines	Patch %	Lines
pandapower/plotting/geo.py	0.00%	23 Missing ⚠️
pandapower/plotting/plotly/mapbox_plot.py	0.00%	1 Missing ⚠️
pandapower/plotting/plotly/pf_res_plotly.py	50.00%	1 Missing ⚠️
pandapower/plotting/plotly/vlevel_plotly.py	50.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #2470      +/-   ##
===========================================
- Coverage    75.50%   75.45%   -0.05%     
===========================================
  Files          288      288              
  Lines        34905    34910       +5     
===========================================
- Hits         26354    26342      -12     
- Misses        8551     8568      +17     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.