python3-serpent: update recipe to use the ptest-python-pytest class

Signed-off-by: Derek Straka <derek@asterius.io>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-python/recipes-devtools/python/python3-serpent/run-ptest

@@ -1,3 +0,0 @@
-#!/bin/sh
-
-pytest --automake

meta-python/recipes-devtools/python/python3-serpent_1.41.bb

@@ -4,25 +4,15 @@ LIC_FILES_CHKSUM = "file://LICENSE;md5=d7c28f460fafe7be454fcdcac0b60263"
 
 SRC_URI[sha256sum] = "0407035fe3c6644387d48cff1467d5aa9feff814d07372b78677ed0ee3ed7095"
 
-inherit pypi ptest setuptools3
+inherit pypi ptest-python-pytest setuptools3
 
-SRC_URI += " \
-    file://run-ptest \
-"
 # python3-misc for timeit.py
 RDEPENDS:${PN}-ptest += " \
     python3-attrs \
     python3-misc \
-    python3-pytest \
     python3-pytz \
-    python3-unittest-automake-output \
 "
 
-do_install_ptest() {
-    install -d ${D}${PTEST_PATH}/tests
-    cp -rf ${S}/tests/* ${D}${PTEST_PATH}/tests/
-}
-
 RDEPENDS:${PN} += "\
     python3-netclient \
     python3-numbers \