recipes: update for PYPI_PACKAGE change

The pypi class has slightly changed the semantics of the PYPI_PACKAGE
variable[1], now PYPI_PACKAGE is the normalised package name and the new
variable PYPI_PACKAGE_SDIST is used when the source tarball doesn't match.

Update recipes as appropriate: this is mostly deleting now-redundant
assignments but some assignments are still needed where packages are not
uploaded using the modern standards.

[1] oe-core 98049bf86b6 ("classes/pypi: change PYPI_PACKAGE to be normalised")

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Khem Raj <khem.raj@oss.qualcomm.com>

meta-python/recipes-devtools/python/python3-tokenize-rt_6.2.0.bb

@@ -10,8 +10,6 @@ inherit pypi setuptools3 ptest-python-pytest
 
 RDEPENDS:${PN} += "python3-core"
 
-PYPI_PACKAGE = "tokenize_rt"
-
 do_install_ptest:append() {
     install -d ${D}${PTEST_PATH}/testing/resources
     cp -rf ${S}/testing/resources/* ${D}${PTEST_PATH}/testing/resources/