Revert "poky: subtree update:b23aa6b753..ad30a6d470"

This reverts commit af5e4ef732faedf66c6dc1756432e9de2ac72988.

This commit introduced openbmc/openbmc#3720 and no solution has been
forthcoming. Revert until we can get to the bottom of this.

Change-Id: I2fb0d81eb26cf3dadb2f2abdd1a1bb7a95eaf03c
diff --git a/poky/documentation/dev-manual/dev-manual-customization.xsl b/poky/documentation/dev-manual/dev-manual-customization.xsl
new file mode 100644
index 0000000..6b16bca
--- /dev/null
+++ b/poky/documentation/dev-manual/dev-manual-customization.xsl
@@ -0,0 +1,29 @@
+<?xml version='1.0'?>
+<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
+
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns="http://www.w3.org/1999/xhtml" xmlns:fo="http://www.w3.org/1999/XSL/Format" version="1.0">
+
+  <xsl:import href="http://downloads.yoctoproject.org/mirror/docbook-mirror/docbook-xsl-1.76.1/xhtml/docbook.xsl" />
+
+<!--
+
+  <xsl:import href="../template/1.76.1/docbook-xsl-1.76.1/xhtml/docbook.xsl" />
+
+  <xsl:import href="http://docbook.sourceforge.net/release/xsl/1.76.1/xhtml/docbook.xsl" />
+
+-->
+
+  <xsl:include href="../template/permalinks.xsl"/>
+  <xsl:include href="../template/section.title.xsl"/>
+  <xsl:include href="../template/component.title.xsl"/>
+  <xsl:include href="../template/division.title.xsl"/>
+  <xsl:include href="../template/formal.object.heading.xsl"/>
+
+  <xsl:param name="html.stylesheet" select="'dev-style.css'" />
+  <xsl:param name="chapter.autolabel" select="1" />
+  <xsl:param name="appendix.autolabel" select="A" />
+  <xsl:param name="section.autolabel" select="1" />
+  <xsl:param name="section.label.includes.component.label" select="1" />
+  <xsl:param name="generate.id.attributes" select="1" />
+
+</xsl:stylesheet>