Remove upgrade guide doc from glusterfs repo

According to the new workflow defined for glusterfs documentation,
the upgrade guide is maintained at https://github.com/gluster/glusterdocs

Refer #https://www.mail-archive.com/gluster-users@gluster.org/msg21168.html

Change-Id: I6b04847d0201d362ec054ee245999b6b42e42ea7
BUG: 1206539
Signed-off-by: Humble Devassy Chirammal <hchiramm@redhat.com>
Reviewed-on: http://review.gluster.org/11750
Reviewed-by: Prashanth Pai <ppai@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>

3 files changed, 0 insertions, 210 deletions

diff --git a/doc/upgrade-guide/upgrade_to_3.5.md b/doc/upgrade-guide/upgrade_to_3.5.md
deleted file mode 100644
index 0f9b712423a..00000000000
--- a/doc/upgrade-guide/upgrade_to_3.5.md
+++ /dev/null
@@ -1,2 +0,0 @@
-Refer below url to upgrade GlusterFS from its earlier versions to GlusterFS 3.5 version.
-[upgrade to 3.5](http://www.gluster.org/community/documentation/index.php/Upgrade_to_3.5)
diff --git a/doc/upgrade-guide/upgrade_to_3.6.md b/doc/upgrade-guide/upgrade_to_3.6.md
deleted file mode 100644
index f2a812491dc..00000000000
--- a/doc/upgrade-guide/upgrade_to_3.6.md
+++ /dev/null
@@ -1,2 +0,0 @@
-Refer below url to upgrade GlusterFS from its earlier versions to GlusterFS 3.6 version.
-[upgrade to 3.6](http://www.gluster.org/community/documentation/index.php/Upgrade_to_3.6)
diff --git a/doc/xlators/meta.md b/doc/xlators/meta.md
deleted file mode 100644
index da0d62ae3d7..00000000000
--- a/doc/xlators/meta.md
+++ /dev/null
@@ -1,206 +0,0 @@
-Meta translator
-===============
-
-Introduction
-------------
-
-Meta xlator provides an interface similar to the Linux procfs, for GlusterFS
-runtime and configuration. This document lists some useful information about
-GlusterFS internals that could be accessed via the meta xlator. This is not
-exhaustive at the moment. Contributors are welcome to improve this.
-
-Note: Meta xlator is loaded automatically in the client graph, ie. in the
-mount process' graph.
-
-### GlusterFS native mount version
-
->[root@trantor codebase]# cat $META/version
->{
->  "Package Version": "3.7dev"
->}
-
-### Listing of some files under the `meta` folder
-
->[root@trantor codebase]# mount -t glusterfs trantor:/vol /mnt/fuse
->[root@trantor codebase]# ls $META
->cmdline  frames  graphs  logging  mallinfo  master  measure_latency  process_uuid  version
-
-### GlusterFS' process identifier
-
->[root@trantor codebase]# cat $META/process_uuid
->trantor-11149-2014/07/25-18:48:50:468259
->
-This identifier appears in connection establishment log messages.
-For eg.,
-
->[2014-07-25 18:48:49.017927] I [server-handshake.c:585:server_setvolume] 0-vol-server: accepted client from trantor-11087-2014/07/25-18:48:48:779656-vol-client-0-0-0 (version: 3.7dev)
->
-
-### GlusterFS command line
-
->[root@trantor codebase]# cat $META/cmdline
->{
->  "Cmdlinestr": "/usr/local/sbin/glusterfs --volfile-server=trantor --volfile-id=/vol /mnt/fuse"
->}
-
-### GlusterFS volume graph
-
-The following directory structure reveals the way xlators are stacked in a
-graph like fashion. Each (virtual) file under a xlator directory provides
-runtime information of that xlator.  For eg. 'name' contains the name of the
-xlator.
-
-```
-/mnt/fuse/.meta/graphs/active
-|-- meta-autoload
-|   |-- history
-|   |-- meminfo
-|   |-- name
-|   |-- options
-|   |-- private
-|   |-- profile
-|   |-- subvolumes
-|   |   `-- 0 -> ../../vol
-|   |-- type
-|   `-- view
-|-- top -> meta-autoload
-|-- vol
-|   |-- history
-|   |-- meminfo
-|   |-- name
-|   |-- options
-|   |   |-- count-fop-hits
-|   |   `-- latency-measurement
-|   |-- private
-|   |-- profile
-|   |-- subvolumes
-|   |   `-- 0 -> ../../vol-md-cache
-|   |-- type
-|   `-- view
-|-- vol-client-0
-|   |-- history
-|   |-- meminfo
-|   |-- name
-|   |-- options
-|   |   |-- client-version
-|   |   |-- clnt-lk-version
-|   |   |-- fops-version
-|   |   |-- password
-|   |   |-- ping-timeout
-|   |   |-- process-uuid
-|   |   |-- remote-host
-|   |   |-- remote-subvolume
-|   |   |-- send-gids
-|   |   |-- transport-type
-|   |   |-- username
-|   |   |-- volfile-checksum
-|   |   `-- volfile-key
-|   |-- private
-|   |-- profile
-|   |-- subvolumes
-|   |-- type
-|   `-- view
-|-- vol-client-1
-|   |-- history
-|   |-- meminfo
-|   |-- name
-|   |-- options
-|   |   |-- client-version
-|   |   |-- clnt-lk-version
-|   |   |-- fops-version
-|   |   |-- password
-|   |   |-- ping-timeout
-|   |   |-- process-uuid
-|   |   |-- remote-host
-|   |   |-- remote-subvolume
-|   |   |-- send-gids
-|   |   |-- transport-type
-|   |   |-- username
-|   |   |-- volfile-checksum
-|   |   `-- volfile-key
-|   |-- private
-|   |-- profile
-|   |-- subvolumes
-|   |-- type
-|   `-- view
-|-- vol-dht
-|   |-- history
-|   |-- meminfo
-|   |-- name
-|   |-- options
-|   |-- private
-|   |-- profile
-|   |-- subvolumes
-|   |   |-- 0 -> ../../vol-client-0
-|   |   `-- 1 -> ../../vol-client-1
-|   |-- type
-|   `-- view
-|-- volfile
-|-- vol-io-cache
-|   |-- history
-|   |-- meminfo
-|   |-- name
-|   |-- options
-|   |-- private
-|   |-- profile
-|   |-- subvolumes
-|   |   `-- 0 -> ../../vol-read-ahead
-|   |-- type
-|   `-- view
-|-- vol-md-cache
-|   |-- history
-|   |-- meminfo
-|   |-- name
-|   |-- options
-|   |-- private
-|   |-- profile
-|   |-- subvolumes
-|   |   `-- 0 -> ../../vol-open-behind
-|   |-- type
-|   `-- view
-|-- vol-open-behind
-|   |-- history
-|   |-- meminfo
-|   |-- name
-|   |-- options
-|   |-- private
-|   |-- profile
-|   |-- subvolumes
-|   |   `-- 0 -> ../../vol-quick-read
-|   |-- type
-|   `-- view
-|-- vol-quick-read
-|   |-- history
-|   |-- meminfo
-|   |-- name
-|   |-- options
-|   |-- private
-|   |-- profile
-|   |-- subvolumes
-|   |   `-- 0 -> ../../vol-io-cache
-|   |-- type
-|   `-- view
-|-- vol-read-ahead
-|   |-- history
-|   |-- meminfo
-|   |-- name
-|   |-- options
-|   |-- private
-|   |-- profile
-|   |-- subvolumes
-|   |   `-- 0 -> ../../vol-write-behind
-|   |-- type
-|   `-- view
-`-- vol-write-behind
-    |-- history
-    |-- meminfo
-    |-- name
-    |-- options
-    |-- private
-    |-- profile
-    |-- subvolumes
-    |   `-- 0 -> ../../vol-dht
-    |-- type
-    `-- view
-
-```