go-ipfs: update to 0.4.9.

And remove the install message.  Not really relevant anymore.

Closes: #6390 [via git-merge-pr]

srcpkgs/go-ipfs/INSTALL.msg

@@ -1,3 +0,0 @@
-Please note that go-ipfs 0.4.0 introduces a change that breaks compatibility
-with earlier versions at the networking layer.  Thus, it will be unable to
-communicate with peers running versions of go-ipfs older than 0.4.0.

srcpkgs/go-ipfs/template

@@ -1,7 +1,7 @@
 # Template file for 'go-ipfs'
 pkgname=go-ipfs
-version=0.4.8
-revision=2
+version=0.4.9
+revision=1
 create_wrksrc=yes
 build_wrksrc=${pkgname}-${version}
 build_style=go
@@ -14,8 +14,8 @@ license="MIT"
 homepage="https://ipfs.io"
 distfiles="https://${go_import_path}/archive/v${version}.tar.gz
  http://the-brannons.com/ipfs-gx-deps-${version}.tar.xz"
-checksum="a5b5556374b30d162e79858f8ead475d7d073a6f862d6fb85afa6148c62541fa
- 19ba225a56c7238ea8b304222f623db14f0b6294cd86e4eb23baf43e54d7cb12"
+checksum="922d88170d203b7f644b3cd1df50fb212c9a3f7062411ad2d17335f191ee69d8
+ dae7bad8f0ac7e904dbd050b3b091aa1fe9926384bc88cd7839efae47b721698"
 
 do_build() {
 	local path="${GOPATH}/src/${go_import_path}"