Remove deprecated functions

[lorenzncode]

Remove deprecated functions.
Use tmpdir for export tests.

All of the removed functions were deprecated prior to v2.2.0 or earlier.

I did not remove Assembly.save and the old Workplane boolean operator overloads. These were more recently deprecated Aug 2024 prior to v2.5.0.

Closes #680, #1509

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.92%. Comparing base (e486f43) to head (5dc3d09).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1972      +/-   ##
==========================================
+ Coverage   95.86%   95.92%   +0.06%     
==========================================
  Files          29       29              
  Lines        7949     7857      -92     
  Branches     1194     1174      -20     
==========================================
- Hits         7620     7537      -83     
+ Misses        191      185       -6     
+ Partials      138      135       -3     

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[lorenzncode]

Workplane combineSolids was deprecated June 2020.
The exporters functions toString, exportShape, and readAndDeleteFile were deprecated July 2020.

[lorenzncode]

Workplane.findFace was deprecated March 2021.
Workplane.text cut arg was deprecated Jan 2022.
Solid.interpPlate was deprecated July 2022.