Remove 0.14.x deprecations

[tony]

Remove deprecated functions and exceptions:

• Removed libvcs.shortcuts

  • Removed libvcs.shortcuts.create_project_from_pip_url(): This will be replaced in future versions by #376 / parsing utilities

  • Moved libvcs.shortcuts.create_project() to libvcs._internal.shortcuts.create_project()

• Removed libvcs.exc.InvalidPipURL

[codecov]

Codecov Report

Merging #377 (aeb79c4) into master (4f174a7) will decrease coverage by 1.01%.
The diff coverage is 80.00%.

❗ Current head aeb79c4 differs from pull request most recent head 361ef02. Consider uploading reports for the commit 361ef02 to get more accurate results

@@            Coverage Diff             @@
##           master     #377      +/-   ##
==========================================
- Coverage   70.22%   69.21%   -1.02%     
==========================================
  Files          20       19       -1     
  Lines        1881     1842      -39     
==========================================
- Hits         1321     1275      -46     
- Misses        560      567       +7     

Impacted Files	Coverage Δ
libvcs/exc.py	100.00% <ø> (ø)
tests/test_exc.py	100.00% <ø> (ø)
tests/projects/test_git.py	98.83% <66.66%> (-0.59%)	⬇️
tests/projects/test_hg.py	95.23% <100.00%> (-0.22%)	⬇️
tests/test_shortcuts.py	100.00% <100.00%> (ø)
libvcs/projects/base.py	93.84% <0.00%> (-6.16%)	⬇️
libvcs/projects/git.py	75.70% <0.00%> (-0.71%)	⬇️

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