python3-nacl: drop duplicate recipe

Recipes python3-nacl and python3-pynacl are exactly the same reipces for
python packge "PyNaCl", so drop the latter one python3-nacl_1.5.0.bb.

And let python3-pynacl rprovides python3-nacl in case it is required by
other recipes. Ajust the order in python3-pynacl as well accord to

https://docs.yoctoproject.org/dev/contributor-guide/recipe-style-guide.html#recipe-ordering

Signed-off-by: Kai Kang <kai.kang@windriver.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-python/recipes-devtools/python/python3-pynacl_1.5.0.bb

@@ -10,21 +10,11 @@ PYPI_PACKAGE = "PyNaCl"
 
 inherit pypi python_setuptools_build_meta
 
-# in meta-virtualization layer
-#
-RCONFLICTS:${PN} = "python3-nacl"
-
 DEPENDS += "\
     ${PYTHON_PN}-cffi-native \
     libsodium \
 "
 
-RDEPENDS:${PN} = "\
-    ${PYTHON_PN}-six \
-    ${PYTHON_PN}-cffi \
-    libsodium \
-"
-
 do_compile:prepend() {
     export SODIUM_INSTALL=system
 }
@@ -32,3 +22,15 @@ do_compile:prepend() {
 do_install:prepend() {
     export SODIUM_INSTALL=system
 }
+
+RDEPENDS:${PN} = "\
+    ${PYTHON_PN}-six \
+    ${PYTHON_PN}-cffi \
+    libsodium \
+"
+
+RPROVIDES:${PN} = "python3-nacl"
+
+# in meta-virtualization layer
+#
+RCONFLICTS:${PN} = "python3-nacl"