meta-python: README: drop outdated/confusing sentence
meta-python: README: drop outdated/confusing sentence

* declaration of independence from openembedded-core and meta-oe conflicts with
the current state of the layer, which does indeed depend on both of them for
building several recipes (as correctly stated a few lines below).
* anki was removed from meta-oe as well
* gateone lives in meta-python and is one of those recipes with dependencies in
meta-oe

Signed-off-by: Andrea Galbusera <6af94ec2abb4591715fcd9dabad664a550d900de@gmail.com>
Signed-off-by: Armin Kuster <525edcd226fb27e7f47fbb319a38fe989c677548@gmail.com>

VCTLabs/meta-openembedded,sigma-embedded/elito-org.openembedded.meta,mrchapp/meta-openembedded,lgirdk/meta-openembedded,rehsack/meta-openembedded,schnitzeltony/meta-openembedded,VCTLabs/meta-openembedded,openembedded/meta-openembedded,moto-timo/meta-openembedded,lgirdk/meta-openembedded,kraj/meta-openembedded,sigma-embedded/elito-org.openembedded.meta,schnitzeltony/meta-openembedded,sigma-embedded/elito-org.openembedded.meta,schnitzeltony/meta-openembedded,openembedded/meta-openembedded,VCTLabs/meta-openembedded,victronenergy/meta-openembedded,rehsack/meta-openembedded,victronenergy/meta-openembedded,victronenergy/meta-openembedded,mrchapp/meta-openembedded,rehsack/meta-openembedded,victronenergy/meta-openembedded,lgirdk/meta-openembedded,kraj/meta-openembedded,lgirdk/meta-openembedded,moto-timo/meta-openembedded,victronenergy/meta-openembedded,sigma-embedded/elito-org.openembedded.meta,kraj/meta-openembedded,openembedded/meta-openembedded,moto-timo/meta-openembedded,sigma-embedded/elito-org.openembedded.meta,VCTLabs/meta-openembedded,victronenergy/meta-openembedded,VCTLabs/meta-openembedded,moto-timo/meta-openembedded,kraj/meta-openembedded,lgirdk/meta-openembedded,openembedded/meta-openembedded,VCTLabs/meta-openembedded,openembedded/meta-openembedded,kraj/meta-openembedded,kraj/meta-openembedded,kraj/meta-openembedded,schnitzeltony/meta-openembedded,rehsack/meta-openembedded,VCTLabs/meta-openembedded,mrchapp/meta-openembedded,lgirdk/meta-openembedded,mrchapp/meta-openembedded,schnitzeltony/meta-openembedded,rehsack/meta-openembedded,schnitzeltony/meta-openembedded,mrchapp/meta-openembedded,victronenergy/meta-openembedded,lgirdk/meta-openembedded,mrchapp/meta-openembedded,sigma-embedded/elito-org.openembedded.meta,rehsack/meta-openembedded,sigma-embedded/elito-org.openembedded.meta,rehsack/meta-openembedded,schnitzeltony/meta-openembedded,VCTLabs/meta-openembedded,mrchapp/meta-openembedded,openembedded/meta-openembedded,openembedded/meta-openembedded,openembedded/meta-openembedded,moto-timo/meta-openembedded