meta-python: remove obsolete dependencies on python3-six

These recipes no longer use six, so remove the dependency.

The list of recipes that still use six is a somewhat useful proxy for
packages that are no longer maintained...

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-h5py_3.16.0.bb

@@ -14,13 +14,11 @@ BBCLASSEXTEND = "native"
 
 DEPENDS = "python3-pkgconfig-native \
            python3-numpy-native \
-           python3-six-native \
            hdf5-native \
            python3 \
            hdf5 \
           "
 
 RDEPENDS:${PN} = "python3-numpy \
-                  python3-six \
                   python3-json \
                  "