Remove printview.css theme files

[MauricioFauth]

Uses CSS's print media query instead of a dedicated file for print.

[codecov]

Codecov Report

Merging #17171 (220ed30) into master (78104be) will decrease coverage by 0.03%.
The diff coverage is 20.00%.

@@             Coverage Diff              @@
##             master   #17171      +/-   ##
============================================
- Coverage     47.74%   47.71%   -0.04%     
  Complexity    16662    16662              
============================================
  Files           577      577              
  Lines         60498    60496       -2     
============================================
- Hits          28883    28863      -20     
- Misses        31615    31633      +18     

Flag	Coverage Δ
dbase-extension	47.49% <20.00%> (-0.04%)	⬇️
recode-extension	47.45% <20.00%> (+0.02%)	⬆️
unit-7.2-ubuntu-latest	47.45% <20.00%> (+0.03%)	⬆️
unit-7.3-ubuntu-latest	50.37% <20.00%> (-0.03%)	⬇️
unit-7.4-ubuntu-latest	50.42% <20.00%> (-0.03%)	⬇️
unit-8.0-ubuntu-latest	50.52% <20.00%> (-0.02%)	⬇️

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

Impacted Files	Coverage Δ
libraries/classes/Config.php	64.95% <0.00%> (ø)
...asses/Controllers/JavaScriptMessagesController.php	99.56% <ø> (-0.01%)	⬇️
libraries/classes/Html/Generator.php	17.59% <0.00%> (ø)
libraries/classes/Display/Results.php	60.40% <33.33%> (ø)
libraries/classes/Charsets.php	50.90% <0.00%> (-30.91%)	⬇️
...ries/classes/Plugins/Auth/AuthenticationConfig.php	70.14% <0.00%> (-5.98%)	⬇️
libraries/classes/Gis/GisMultiPoint.php	87.50% <0.00%> (-1.32%)	⬇️
libraries/classes/Header.php	87.27% <0.00%> (-1.10%)	⬇️
libraries/classes/Gis/GisMultiPolygon.php	78.04% <0.00%> (-0.82%)	⬇️
libraries/classes/Transformations.php	60.60% <0.00%> (-0.51%)	⬇️
... and 2 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 78104be...220ed30. Read the comment docs.