[oe] [meta-python] README: contradictory indications?

[Andrea Galbusera]

Hi,

I see that README in meta-python contains conflicting information
about layer's dependencies. The introductory paragraph states that
"modules in this layer need to be independent of openembedded-core and
meta-openembedded/meta-oe", then a few lines below both of these
layers are listed within meta-python's dependencies.

To me, looks like the sentence in the introduction does not hold true
and can be removed. If you can help clarify what the correct
information is, I can send a patch to fix the documentation bits.