python3-xmlrunner: remove the recipe

Last release in 2014, not compatible with python 3.12.

Signed-off-by: Alexander Kanavin <alex@linutronix.de>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-python/recipes-core/packagegroups/packagegroup-meta-python.bb

@@ -459,7 +459,6 @@ RDEPENDS:packagegroup-meta-python3 = "\
     python3-wtforms \
     python3-xlrd \
     python3-xlsxwriter \
-    python3-xmlrunner \
     python3-xmltodict \
     python3-xmodem \
     python3-xstatic \