[FIX] update Azure OSX CI + remove Azure Linux CI's

[skoudoro]

• Update the version of our macOS virtual machine. from macOS-10.14 to macOS-latest. This should fix our SSL issue with python
• Remove all Linux matrix on Azure Pipeline. It was experimental. The goal was to see if we can have only one tool to maintain, stop Travis, and switch completely to Azure Pipeline. After this long experimental experience, I think we should keep both, Azure pipeline and Travis. So I just removed the duplicated Linux matrices to speed up a bit the building time of our PR

[codecov]

Codecov Report

Merging #2258 into master will increase coverage by 0.00%.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #2258   +/-   ##
=======================================
  Coverage   91.44%   91.45%           
=======================================
  Files         254      254           
  Lines       33574    33574           
  Branches     3532     3532           
=======================================
+ Hits        30702    30704    +2     
  Misses       2083     2083           
+ Partials      789      787    -2     

Impacted Files	Coverage Δ
dipy/viz/app.py	77.47% <0.00%> (+0.49%)	⬆️

[arokem]

Looks like maybe there are some issue install scs and ecos on OSX/Python 3.8:

https://dev.azure.com/dipy/dipy/_build/results?buildId=730&view=logs&j=b8285961-b5bb-5480-5e45-605bdb8d8550&t=0beb2fcb-e8fb-5580-4398-e341de8e0316&l=264

I couldn't find any other reports of this issue.

[skoudoro]

Strange... it seems that it works here. I will restart the CI to be sure.

[arokem]

Oh yeah! 🤞 that it's just a glitch.

[skoudoro]

it was a glitch!

it is ready to go! 🎉