kernel, license, sstate, rootfs.py: Remove deploy directory README

It isn't clear that the README_-_DO_NOT_DELETE_FILES_IN_THIS_DIRECTORY.txt
file in the deploy directory warrants the complexity it brings elsewhere.
Let's just remove it entirely.

In particular, if two do_image_complete tasks run in parallel they risk
both trying to put their image into ${DEPLOY_DIR_IMAGE} at the same time.
Both will contain a README_-_DO_NOT_DELETE_FILES_IN_THIS_DIRECTORY.txt
file. In theory this should be safe because "cp -alf" will just cause one
to overwrite the other. Unfortunately, coreutils cp also has a race[1]
which means that if one copy creates the file at just the wrong point the
other will fail with:

 cp: cannot create hard link ‘..../tmp-glibc/deploy/images/pantera/README_-_DO_NOT_DELETE_FILES_IN_THIS_D.txt’ to
+‘..../tmp-glibc/work/rage_against-oe-linux-gnueabi/my-own-image/1.0-r0/deploy-my-own-image-complete/README_-_DO_NOT_DELETE_FILES_IN_THIS_DIRECTORY.txt’: File exists

[1] https://debbugs.gnu.org/cgi/bugreport.cgi?bug=25680

(From OE-Core rev: 71e9e88847d7000781642ea6187ebd8f40dfdcfe)

(From OE-Core rev: 20c39fdbb25c1b1867709c5bfb3ae2baef249be9)

Signed-off-by: Mike Crowe <mac@mcrowe.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/meta/classes/license.bbclass b/meta/classes/license.bbclass
index 660b85f619..721343d0f4 100644
--- a/meta/classes/license.bbclass
+++ b/meta/classes/license.bbclass
@@ -279,7 +279,7 @@ def get_deployed_files(man_file):
     """
 
     dep_files = []
-    excluded_files = ["README_-_DO_NOT_DELETE_FILES_IN_THIS_DIRECTORY.txt"]
+    excluded_files = []
     with open(man_file, "r") as manifest:
         all_files = manifest.read()
     for f in all_files.splitlines():