python-packages: Clean up Makefiles

This removes:

* Python 3 variants (VARIANT:=python3)

* "for Python3" from package titles

* Package selection condition from package dependencies, e.g.
  +PACKAGE_python3-six:python3-light replaced with +python3-light

* "Default" package information sections, e.g.
  Package/python-six/Default removed and package details merged into
  Package/python3-six

* "(Variant for Python3)" from package descriptions

Signed-off-by: Jeffery To <jeffery.to@gmail.com>

lang/python/python-evdev/Makefile

@@ -10,7 +10,7 @@ include $(INCLUDE_DIR)/kernel.mk
 
 PKG_NAME:=python-evdev
 PKG_VERSION:=1.3.0
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_LICENSE:=BSD-3-Clause
 PKG_MAINTAINER:=Paulo Costa <me@paulo.costa.nom.br>, Alexandru Ardelean <ardeleanalex@gmail.com>
@@ -22,26 +22,19 @@ include ../pypi.mk
 include $(INCLUDE_DIR)/package.mk
 include ../python3-package.mk
 
-define Package/python-evdev/Default
+define Package/python3-evdev
   SUBMENU:=Python
   SECTION:=lang
   CATEGORY:=Languages
-  URL:=https://github.com/gvalkov/python-evdev
-endef
-
-define Package/python3-evdev
-$(call Package/python-evdev/Default)
   TITLE:=python3-evdev
+  URL:=https://github.com/gvalkov/python-evdev
   DEPENDS:= \
-      +PACKAGE_python3-evdev:python3-light \
-      +PACKAGE_python3-evdev:python3-ctypes
-  VARIANT:=python3
+      +python3-light \
+      +python3-ctypes
 endef
 
 define Package/python3-evdev/description
 	Bindings to the Linux input handling subsystem
-.
-(Variant for Python3)
 endef
 
 LINUX_EVDEV_HEADERS="$(LINUX_DIR)/include/uapi/linux/input.h:$(LINUX_DIR)/include/uapi/linux/input-event-codes.h"