Makefile: remove from top-level directory

* https://git.openembedded.org/bitbake/commit/?id=a7c47f1eac8caac607a2b5f12d07235dff4d740f
  was somehow badly imported as:
  just a rename from bitbake/doc/Makefile.sphinx to Makefile:
  https://git.yoctoproject.org/poky/commit/?id=1fd9c4b2c0ae927df29f7a0d34c3e595bcf48e89

  The missing bitbake/doc/Makefile was later restored in:
  https://git.yoctoproject.org/poky/commit/?id=415962ad94149de121a1c01215073a52bb54dc14
  but the doc/README change is still missing in poky

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

Makefile

@@ -1,35 +0,0 @@
-# Minimal makefile for Sphinx documentation
-#
-
-# You can set these variables from the command line, and also
-# from the environment for the first two.
-SPHINXOPTS    ?=
-SPHINXBUILD   ?= sphinx-build
-SOURCEDIR     = .
-BUILDDIR      = _build
-DESTDIR       = final
-
-ifeq ($(shell if which $(SPHINXBUILD) >/dev/null 2>&1; then echo 1; else echo 0; fi),0)
-$(error "The '$(SPHINXBUILD)' command was not found. Make sure you have Sphinx installed")
-endif
-
-# Put it first so that "make" without argument is like "make help".
-help:
-	@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
-
-.PHONY: help Makefile.sphinx clean publish
-
-publish: Makefile.sphinx html singlehtml
-	rm -rf $(BUILDDIR)/$(DESTDIR)/
-	mkdir -p $(BUILDDIR)/$(DESTDIR)/
-	cp -r $(BUILDDIR)/html/* $(BUILDDIR)/$(DESTDIR)/
-	cp $(BUILDDIR)/singlehtml/index.html $(BUILDDIR)/$(DESTDIR)/singleindex.html
-	sed -i -e 's@index.html#@singleindex.html#@g' $(BUILDDIR)/$(DESTDIR)/singleindex.html
-
-clean:
-	@rm -rf $(BUILDDIR)
-
-# Catch-all target: route all unknown targets to Sphinx using the new
-# "make mode" option.  $(O) is meant as a shortcut for $(SPHINXOPTS).
-%: Makefile.sphinx
-	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)

bitbake/doc/README

@@ -47,8 +47,8 @@ To install all required packages run:
 
 To build the documentation locally, run:
 
- $ cd documentation
- $ make -f Makefile.sphinx html
+ $ cd doc
+ $ make html
 
 The resulting HTML index page will be _build/html/index.html, and you
 can browse your own copy of the locally generated documentation with