python3-jinja2: bbappend for ptest

The main recipe has moved to oe-core, but with ptest
disabled. Here we simply conditionally inherit ptest
to enable it in meta-python.

Remove the original recipe and the python3-jinja2/
directory.

Signed-off-by: Tim Orling <ticotimo@gmail.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-python/recipes-devtools/python/python3-jinja2_2.%.bbappend

@@ -0,0 +1,2 @@
+# Main recipe was moved to oe-core, but with ptest disabled
+inherit ${@bb.utils.filter('DISTRO_FEATURES', 'ptest', d)}