terraform: remove external plugins

closes #5638
thanks @ahjones

srcpkgs/terraform/template

@@ -1,7 +1,7 @@
 # Template file for 'terraform'
 pkgname=terraform
 version=0.8.1
-revision=1
+revision=2
 build_style=go
 short_desc="A tool for building, changing, and combining infrastructure"
 maintainer="Andrea Brancaleoni <miwaxe@gmail.com>"
@@ -10,21 +10,3 @@ homepage="https://www.terraform.io/"
 go_import_path="github.com/hashicorp/$pkgname"
 distfiles="https://$go_import_path/archive/v$version.tar.gz"
 checksum=927b4909a64b8550376e87c737eab0f34a0895f2700fa8bc81de339f4a7ffe20
-
-post_build() {
-	for F in $(find -type f -name main.go); do
-		go get -x $go_import_path/${F%/*}
-	done
-}
-
-
-do_install() {
-	find "${GOPATH}/bin" -type f -executable | while read line
-	do
-		if [ "$(basename $line)" = terraform ]; then
-			vbin $line
-		else
-			vbin $line terraform-$(basename $line)
-		fi
-	done
-}