Support removal of elements based on a file containing a list of XPaths

[pcon]

For example, if we have the following object named Admin.profile

<?xml version="1.0" encoding="UTF-8"?>
<Profile xmlns="http://soap.sforce.com/2006/04/metadata">
    <!-- Lots more data goes here -->
    <userPermissions>
        <enabled>true</enabled>
        <name>MergeTopics</name>
    </userPermissions>
    <userPermissions>
        <enabled>true</enabled>
        <name>ModerateChatter</name>
    </userPermissions>
    <userPermissions>
        <enabled>true</enabled>
        <name>ModifyAllData</name>
    </userPermissions>
</Profile>

and we had a file xpath/objects/Account.xpath with the contents of

/Profile/userPermissions[name[text() = 'ModerateChatter']]
/Profile/userPermissions/[name[text() = 'ModifyAllData']]

the result would be

<?xml version="1.0" encoding="UTF-8"?>
<Profile xmlns="http://soap.sforce.com/2006/04/metadata">
    <!-- Lots more data goes here -->
    <userPermissions>
        <enabled>true</enabled>
        <name>MergeTopics</name>
    </userPermissions>
</Profile>

[pcon]

Can we also make sure these XPATHs / XSLs can be run against the -meta.xml files? Would be useful for converting

<?xml version="1.0" encoding="UTF-8"?>
<ApexClass xmlns="http://soap.sforce.com/2006/04/metadata">
    <apiVersion>35.0</apiVersion>
    <packageVersions>
        <majorNumber>1</majorNumber>
        <minorNumber>4</minorNumber>
        <namespace>relax</namespace>
    </packageVersions>
    <status>Active</status>
</ApexClass>

to

<?xml version="1.0" encoding="UTF-8"?>
<ApexClass xmlns="http://soap.sforce.com/2006/04/metadata">
    <apiVersion>35.0</apiVersion>
    <status>Active</status>
</ApexClass>