meta-python: drop ${PYTHON_PN}

python 2 is long unsupported, so we no longer need this variable.

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

meta-python/recipes-devtools/python/python3-django_5.0.2.bb

@@ -4,6 +4,6 @@ inherit setuptools3
 SRC_URI[sha256sum] = "b5bb1d11b2518a5f91372a282f24662f58f66749666b0a286ab057029f728080"
 
 RDEPENDS:${PN} += "\
-    ${PYTHON_PN}-sqlparse \
-    ${PYTHON_PN}-asgiref \
+    python3-sqlparse \
+    python3-asgiref \
 "