package/python-automat: drop host-python-m2r build dependency

Since version 22.10.0, used since Buildroot commit
12c430f880f9255529d8c53cdb59f4178d2cd8f4, python-automat no longer
needs host-python-m2r, so let's drop this dependency.

This is needed as host-python-m2r is about to be removed from
Buildroot, due to incompatibility with its dependencies.

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

package/python-automat/python-automat.mk

@@ -10,6 +10,6 @@ PYTHON_AUTOMAT_SITE = https://files.pythonhosted.org/packages/7a/7b/9c3d26d8a041
 PYTHON_AUTOMAT_SETUP_TYPE = setuptools
 PYTHON_AUTOMAT_LICENSE = MIT
 PYTHON_AUTOMAT_LICENSE_FILES = LICENSE
-PYTHON_AUTOMAT_DEPENDENCIES = host-python-m2r host-python-setuptools-scm
+PYTHON_AUTOMAT_DEPENDENCIES = host-python-setuptools-scm
 
 $(eval $(python-package))