pythonlib: remove gunittest from Makefile (accidentally backported in https://trac.osgeo.org/grass/changeset/65439)

git-svn-id: https://svn.osgeo.org/grass/grass/branches/releasebranch_7_0@65461 15284696-431f-4ddb-bdfa-cd5b030d7da7

lib/python/Makefile

@@ -5,7 +5,7 @@ include $(MODULE_TOPDIR)/include/Make/Python.make
 
 PYDIR = $(ETC)/python/grass
 
-SUBDIRS = exceptions script ctypes temporal pygrass pydispatch imaging gunittest
+SUBDIRS = exceptions script ctypes temporal pygrass pydispatch imaging
 
 default: $(PYDIR)/__init__.py
 	$(MAKE) subdirs