Remove expected results for tesseroid calculations in docstring examples.
Printing floats in forward modelling examples isn't that meaningful and often
creates failures when running doctests: small differences between the expected
and the got value could occur under some dependency and OS combinations.
Description
Remove expected results for tesseroid calculations in docstring examples. Printing floats in forward modelling examples isn't that meaningful and often creates failures when running doctests: small differences between the expected and the got value could occur under some dependency and OS combinations.