dev-python/wcsaxes: remove unused patches

Closes: https://github.com/gentoo/gentoo/pull/2314

Signed-off-by: David Seifert <soap@gentoo.org>

dev-python/wcsaxes/files/wcsaxes-0.6-disable_mpltest.patch

@@ -1,14 +0,0 @@
-Author: Ole Streicher <olebole@debian.org>
-Description: Remove the tests that require pytest-mpl
- Pytest_mpl is (still) not available in Debian.
- https://github.com/astrofrog/pytest-mpl
---- a/setup.cfg
-+++ b/setup.cfg
-@@ -11,7 +11,6 @@
- minversion = 2.2
- norecursedirs = build docs/_build
- doctest_plus = enabled
--addopts = --mpl --mpl-baseline-path=wcsaxes/tests/baseline_images
- 
- [ah_bootstrap]
- auto_use = False

dev-python/wcsaxes/files/wcsaxes-0.6-disable_numpy_warnings_test.patch

@@ -1,16 +0,0 @@
-Author: Ole Streicher <olebole@debian.org>
-Description: Disable test_no_numpy_warnings
- This test may fails when numpy decides that it wants to put some important
- message as a warning; even if nothing goes wrong. This happens f.e. for
- numpy-1.11.0~b2.
---- a/wcsaxes/tests/test_misc.py
-+++ b/wcsaxes/tests/test_misc.py
-@@ -51,6 +51,8 @@
- COORDSYS= 'icrs    '
- """, sep='\n')
- 
-+# see https://github.com/astrofrog/wcsaxes/issues/187
-+@pytest.mark.xfail
- def test_no_numpy_warnings():
- 
-     # Make sure that no warnings are raised if some pixels are outside WCS