Remove dependancy nightmares for astroquery

common/python-packages.scm

@@ -849,10 +849,7 @@
     (native-inputs
       `(("python-flask" ,python-flask)
         ("python-jinja2" ,python-jinja2)
-        ("python-matplotlib" ,python-matplotlib)
-        ("python-pytest-astropy" ,python-pytest-astropy)
-        ("python-pytest-dependency"
-         ,python-pytest-dependency)))
+        ("python-matplotlib" ,python-matplotlib)))
     (home-page "http://astropy.org/astroquery")
     (synopsis
       "Functions and classes to access online astronomical data resources")