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-python-xmp-toolkit_2.1.0.bb

@@ -8,8 +8,6 @@ SRC_URI[sha256sum] = "ca0aa2c60d418dd2558767db59953ab5954fb5b87dc0b50cecd60566b0
 
 inherit pypi python_flit_core ptest-python-pytest
 
-PYPI_PACKAGE = "python_xmp_toolkit"
-
 DEPENDS += "\
     python3-pytz-native \
 "