packages: remove "consecutive empty lines"

... as reported by utils/check-package

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Adam Duskett <aduskett@gmail.com>
Cc: Yegor Yefremov<yegorslists@googlemail.com>
Cc: Matt Weber <matthew.weber@rockwellcollins.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/python3/python3.mk

@@ -159,7 +159,6 @@ PYTHON3_CONF_OPTS += \
 	--disable-idle3 \
 	--disable-pyc-build
 
-
 #
 # Some of CPython's source code is generated using Python interpreter
 # and some helper tools such as "Programs/_freeze_importlib" or
@@ -201,7 +200,6 @@ endef
 
 PYTHON3_PRE_BUILD_HOOKS += PYTHON3_MAKE_REGEN_IMPORTLIB
 
-
 #
 # Remove useless files. In the config/ directory, only the Makefile
 # and the pyconfig.h files are needed at runtime.

package/setools/setools.mk

@@ -13,7 +13,6 @@ SETOOLS_LICENSE_FILES = COPYING COPYING.GPL COPYING.LGPL
 SETOOLS_SETUP_TYPE = setuptools
 HOST_SETOOLS_DEPENDENCIES = host-libselinux host-libsepol
 
-
 ifeq ($(BR2_PACKAGE_PYTHON3),y)
 SETOOLS_PYLIBVER = python$(PYTHON3_VERSION_MAJOR)
 else