sysutils/consul-replicate: Unbreak with go1.13

===>  Building for consul-replicate-0.4.0
WORK=/tmp/go-build989497025
/usr/local/go/src/net/http/h2_bundle.go:49:2: use of vendored package not allowed
../../../vendor/golang.org/x/net/http2/transport.go:31:2: use of vendored package not allowed
*** Error code 1

- Remove custom targets

PR:		240173
Submitted by:	Dmitri Goutnik <dg@syrec.org>
Pointy hat:	jlaffaye

sysutils/consul-replicate/Makefile

@@ -11,13 +11,17 @@ COMMENT=	Consul cross-DC KV replication daemon
 LICENSE=	MPL20
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
-BROKEN=		fails to build
+USES=		go
-
-USES=		compiler go
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	hashicorp
-GH_SUBDIR=	src/github.com/${GH_ACCOUNT}/${PORTNAME}
+
+GO_PKGNAME=	github.com/${GH_ACCOUNT}/${PORTNAME}
+GO_BUILDFLAGS=	-ldflags="\
+		-X github.com/${GH_ACCOUNT}/${PORTNAME}/version.Version=${PORTVERSION} \
+		-X github.com/${GH_ACCOUNT}/${PORTNAME}/version.GitCommit=675a2c2 \
+		-X github.com/${GH_ACCOUNT}/${PORTNAME}/version.GitDescribe=v${PORTVERSION} \
+		"
 
 USE_RC_SUBR=	consul-replicate
 
@@ -26,29 +30,4 @@ PLIST_FILES=	bin/${PORTNAME}
 USERS=		consul
 GROUPS=		consul
 
-post-extract:
+.include <bsd.port.mk>
-	@${MV} ${WRKSRC}/vendor/ ${WRKSRC}/src/
-
-do-build:
-	@cd ${WRKSRC}/src/github.com/${GH_ACCOUNT}/${PORTNAME}; \
-		${SETENV} CGO_ENABLED=0 ${BUILD_ENV} ${MAKE_ENV} GOPATH=${WRKSRC} \
-		go build -v -x -ldflags "\
-		-X github.com/${GH_ACCOUNT}/${PORTNAME}/version.Version=${PORTVERSION}  \
-		-X github.com/${GH_ACCOUNT}/${PORTNAME}/version.GitCommit=675a2c2  \
-		-X github.com/${GH_ACCOUNT}/${PORTNAME}/version.GitDescribe=v${PORTVERSION} \
-		" -o bin/${PORTNAME}
-
-do-install:
-	${INSTALL_PROGRAM} \
-		${WRKSRC}/src/github.com/${GH_ACCOUNT}/${PORTNAME}/bin/${PORTNAME} \
-		${STAGEDIR}${PREFIX}/bin/${PORTNAME}
-
-.include <bsd.port.pre.mk>
-
-# golang assumes that if clang is in use, it is called "clang" and not "cc". If
-# it's called "cc", go fails.
-.if ${COMPILER_TYPE} == clang
-BUILD_ENV=	CC=clang
-.endif
-
-.include <bsd.port.post.mk>