Remove references to 'bold' text in reference docs

<emphasis role="bold"> blocks do not render properly, probably due to
conflicting CSS used for syntax highlighting. For the moment, any
mentions of bold text (e.g. "see bold text in the snippet below") have
been removed to avoid confusion as reported in SPR-8520.  SPR-8526 has
been created to address the underlying issue of getting bold to work
even with syntax highlighting.

Issue: SPR-8520, SPR-8526

spring-framework-reference/src/oxm.xml

@@ -311,7 +311,7 @@ public class Application {
        	<para>
        		Marshallers could be configured more concisely using tags from the OXM namespace.
        		To make these tags available, the appropriate schema has to be referenced first in the preamble of the XML configuration file.
-       		The emboldened text	in the below snippet references the OXM schema:
+       		Note the 'oxm' related text below:
        	</para>
        	<programlisting language="xml"><![CDATA[<?xml version="1.0" encoding="UTF-8"?>
 <beans xmlns="http://www.springframework.org/schema/beans"

spring-framework-reference/src/xsd-configuration.xml

@@ -99,7 +99,7 @@ http://www.springframework.org/schema/beans http://www.springframework.org/schem
             and suchlike.</para>
             <para>To use the tags in the <literal>util</literal> schema, you need to have
             the following preamble at the top of your Spring XML configuration file;
-            the bold text in the snippet below references the correct schema so that
+            the text in the snippet below references the correct schema so that
             the tags in the <literal>util</literal> namespace are available to you.</para>
             <programlisting language="xml"><![CDATA[<?xml version="1.0" encoding="UTF-8"?>
 <beans xmlns="http://www.springframework.org/schema/beans"
@@ -470,7 +470,7 @@ public class Client {
             configuration issues, such as looking up a JNDI object and defining EJB references.</para>
             <para>To use the tags in the <literal>jee</literal> schema, you need to have
             the following preamble at the top of your Spring XML configuration file;
-            the bold text in the following snippet references the correct schema so that
+            the text in the following snippet references the correct schema so that
             the tags in the <literal>jee</literal> namespace are available to you.</para>
             <programlisting language="xml"><![CDATA[<?xml version="1.0" encoding="UTF-8"?>
 <beans xmlns="http://www.springframework.org/schema/beans"
@@ -628,7 +628,7 @@ http://www.springframework.org/schema/beans http://www.springframework.org/schem
             themselves.</para>
             <para>In the interest of completeness, to use the tags in the <literal>lang</literal>
             schema, you need to have the following preamble at the top of your Spring XML
-            configuration file; the bold text in the following snippet references the
+            configuration file; the text in the following snippet references the
             correct schema so that the tags in the <literal>lang</literal> namespace are
             available to you.</para>
             <programlisting language="xml"><![CDATA[<?xml version="1.0" encoding="UTF-8"?>
@@ -653,7 +653,7 @@ http://www.springframework.org/schema/beans http://www.springframework.org/schem
             themselves.</para>
             <para>In the interest of completeness, to use the tags in the <literal>jms</literal>
             schema, you need to have the following preamble at the top of your Spring XML
-            configuration file; the bold text in the following snippet references the
+            configuration file; the text in the following snippet references the
             correct schema so that the tags in the <literal>jms</literal> namespace are
             available to you.</para>
             <programlisting language="xml"><![CDATA[<?xml version="1.0" encoding="UTF-8"?>
@@ -685,7 +685,7 @@ http://www.springframework.org/schema/beans http://www.springframework.org/schem
             </tip>
             <para>In the interest of completeness, to use the tags in the <literal>tx</literal>
             schema, you need to have the following preamble at the top of your Spring XML
-            configuration file; the bold text in the following snippet references the
+            configuration file; the text in the following snippet references the
             correct schema so that the tags in the <literal>tx</literal> namespace are
             available to you.</para>
             <programlisting language="xml"><![CDATA[<?xml version="1.0" encoding="UTF-8"?>
@@ -716,7 +716,7 @@ http://www.springframework.org/schema/aop http://www.springframework.org/schema/
             comprehensively covered in the chapter entitled <xref linkend="aop"/>.</para>
             <para>In the interest of completeness, to use the tags in the <literal>aop</literal>
             schema, you need to have the following preamble at the top of your Spring XML
-            configuration file; the bold text in the following snippet references the
+            configuration file; the text in the following snippet references the
             correct schema so that the tags in the <literal>aop</literal> namespace are
             available to you.</para>
             <programlisting language="xml"><![CDATA[<?xml version="1.0" encoding="UTF-8"?>