Merge pull request #5920 from brockdyer03/remove-optional-dep-test

Nexus: Remove unnecessary `test_optional_dependencies.py`

Author: prckent

nexus/nexus/bin/nxs-test

@@ -618,26 +618,6 @@ def required_dependencies():
 
 
 
-def optional_dependencies():
-    nunit('scipy_available')
-
-    nunit('h5py_available')
-
-    nunit('matplotlib_available')
-
-    nunit('pydot_available')
-
-    nunit('spglib_available')
-
-    nunit('pycifrw_available')
-
-    nunit('seekpath_available')
-
-    nunit_all()
-#end def optional_dependencies
-
-
-
 def nexus_imports():
     nunit('imports')
 
@@ -1986,7 +1966,6 @@ def user_examples(label):
 # ordered according to logical dependencies
 NexusTest( versions                        )
 NexusTest( required_dependencies           )
-NexusTest( optional_dependencies           , optional=True)
 NexusTest( nexus_base                      )
 NexusTest( nexus_imports                   )
 NexusTest( testing                         )