Update libnfs to 5.0.2

Removes a patch that is no longer necessary

From Brad Smith

devel/libnfs/Makefile

@@ -1,10 +1,10 @@
 COMMENT=	client library for accessing NFS
 
-DISTNAME=	libnfs-5.0.1
+DISTNAME=	libnfs-5.0.2
 CATEGORIES=	devel net
 MASTER_SITES=	https://github.com/sahlberg/libnfs/archive/
 
-SHARED_LIBS=	nfs	2.1
+SHARED_LIBS=	nfs	2.2
 
 HOMEPAGE=	https://github.com/sahlberg/libnfs
 

devel/libnfs/distinfo

@@ -1,2 +1,2 @@
-SHA256 (libnfs-5.0.1.tar.gz) = fvRFQQtC82ubrUJmCLU8y5zMpBAeVFw4P1ZMEdtnLKg=
-SIZE (libnfs-5.0.1.tar.gz) = 279550
+SHA256 (libnfs-5.0.2.tar.gz) = Y35WZDsZ2p+6mPBoR3iMTa0wi3IxVqZHSAQQNdzfm9M=
+SIZE (libnfs-5.0.2.tar.gz) = 281154

devel/libnfs/patches/patch-lib_socket_c

@@ -1,12 +0,0 @@
-Index: lib/socket.c
---- lib/socket.c.orig
-+++ lib/socket.c
-@@ -166,7 +166,7 @@ set_tcp_sockopt(int sockfd, int optname, int value)
- {
- 	int level;
- 
--	#if defined(__FreeBSD__) || defined(__sun) || (defined(__APPLE__) && defined(__MACH__))
-+	#ifndef SOL_TCP
- 	struct protoent *buf;
- 
- 	if ((buf = getprotobyname("tcp")) != NULL)