package/python-betterproto: use poetry setup type

Use the new poetry setup type which automatically pulls in the
host-python-poetry-core dependency.

Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/python-betterproto/python-betterproto.mk

@@ -7,9 +7,8 @@
 PYTHON_BETTERPROTO_VERSION = 2.0.0b7
 PYTHON_BETTERPROTO_SOURCE = betterproto-$(PYTHON_BETTERPROTO_VERSION).tar.gz
 PYTHON_BETTERPROTO_SITE = https://files.pythonhosted.org/packages/4e/94/930a1368fbed92adc897a9a1fae282e3f9d608547dbf805034ca549f381a
-PYTHON_BETTERPROTO_SETUP_TYPE = pep517
+PYTHON_BETTERPROTO_SETUP_TYPE = poetry
 PYTHON_BETTERPROTO_LICENSE = MIT
 PYTHON_BETTERPROTO_LICENSE_FILES = LICENSE.md
-PYTHON_BETTERPROTO_DEPENDENCIES = host-python-poetry-core
 
 $(eval $(python-package))