Revert "net-mgmt/nagstamon: Mark DEPRECATED"

This reverts commit f401e2a.

devel/py-qt5-pyqt is no longer marked DEPRECATED. This port does not
require python bindings for www/qt5-webkit.

net-mgmt/nagstamon/Makefile

@@ -10,9 +10,6 @@ WWW=		https://nagstamon.ifw-dresden.de/
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
-DEPRECATED=	Depends on deprecated devel/py-qt5-pyqt
-EXPIRATION_DATE=	2023-11-28
-
 BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}importlib-metadata>0:devel/py-importlib-metadata@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}keyring>0:security/py-keyring@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}psutil>=2.0:sysutils/py-psutil@${PY_FLAVOR}