security/py-merkletools: Refactor

Before python 3.6 version pysha3 was required as a runtime dependency
however after the import of sha3 this can be skipped. Additionally this
port has not been updated since 2019 and should be deprecated.

Approved by:	portmgr (blanket)

security/py-merkletools/Makefile

@@ -1,6 +1,6 @@
 PORTNAME=	merkletools
 DISTVERSION=	1.0.3
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	security python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
@@ -11,8 +11,6 @@ WWW=		https://github.com/Tierion/pymerkletools
 
 LICENSE=	MIT
 
-RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}pysha3>0:security/py-pysha3@${PY_FLAVOR}
-
 USES=		python
 USE_PYTHON=	distutils autoplist
 
@@ -20,6 +18,10 @@ NO_ARCH=	yesA
 
 POST_PLIST=	rm-tests-from-plist
 
+post-patch:
+	@${RM} ${WRKSRC}/requirements.txt ${WRKSRC}/merkletools.egg-info/requires.txt
+	@${REINPLACE_CMD} -e '/pysha3/d' ${WRKSRC}/setup.py
+
 post-install:
 	@${RM} -r ${STAGEDIR}${PYTHON_SITELIBDIR}/tests
 

security/py-merkletools/files/patch-merkletools_____init____.py

@@ -0,0 +1,14 @@
+--- merkletools/__init__.py.orig	2024-01-16 17:39:29 UTC
++++ merkletools/__init__.py
+@@ -1,11 +1,5 @@ import binascii
+ import hashlib
+ import binascii
+-try:
+-    import sha3
+-except:
+-    from warnings import warn
+-    warn("sha3 is not working!")
+-
+ 
+ class MerkleTools(object):
+     def __init__(self, hash_type="sha256"):