btrfs-tools: remove nodocs.patch

It isn't used anymore, the docs is disabled by DISABLE_DOCUMENTATION=1.

(From OE-Core rev: 89dddaf7c763f7bf6236857a6638efc2cb93b78e)

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/btrfs-tools/btrfs-tools/nodocs.patch

@@ -1,22 +0,0 @@
-Doc generation requires xmlto and ascidoc which we don't have right now.
-Disable doc generation until such times as we have the right dependencies.
-
-RP 2014/7/16
-
-Upstream-Status: Inappropriate
-
-Index: git/Makefile
-===================================================================
---- git.orig/Makefile	2014-07-16 13:21:43.289386655 +0000
-+++ git/Makefile	2014-07-16 13:42:46.453421079 +0000
-@@ -57,8 +57,8 @@
- btrfs_fragment_libs = -lgd -lpng -ljpeg -lfreetype
- 
- SUBDIRS =
--BUILDDIRS = $(patsubst %,build-%,$(SUBDIRS)) build-Documentation
--INSTALLDIRS = $(patsubst %,install-%,$(SUBDIRS)) install-Documentation
-+BUILDDIRS = $(patsubst %,build-%,$(SUBDIRS))
-+INSTALLDIRS = $(patsubst %,install-%,$(SUBDIRS))
- CLEANDIRS = $(patsubst %,clean-%,$(SUBDIRS))
- 
- .PHONY: $(SUBDIRS)