How can i remove Nodes of Manifest File created with Mage.exe/MageUI.exe without getting trouble with the namespace?

In the Last few Days i tried to .Remove(); some Nodes in a Manifest-File , to specify the Problem i tried to delete the Populated-Files in a Manifest-File with a C# programm.

If you don't know exactly what a Populated file is i will explain it as good as i can:

A Populated File is a File (example: "Populated-File.txt.deploy") wich one you need for you're Manifest-File, because without Populated-Files your Application won't do that much. When you press the "Populate"-Button in the MageUI.exe or you set the Option "-FromDirectory" in the Mage.exe you will add Nodes in the Manifest-File, they are called <dependency dependencyType="install"></dependency> and <file></file>. In these Nodes are Informations about the Populated-Files(example: name="Populated-File.txt.deploy" size="123" location="..."and so on).

These Nodes are in the Manifest-File just like that:

Attention should be paid to the 2nd Node : <asmv1:assembly>, because that is default if the Manifest-File got created with MageUi.exe/ Mage.exe, there starts the Problem.

<?xml version="1.0" encoding="utf-8"?>
<asmv1:assembly xsi:schemaLocation="urn:schemas-microsoft-com:asm.v1 assembly.adaptive.xsd" manifestVersion="1.0" xmlns:asmv1="urn:schemas-microsoft-com:asm.v1" xmlns="urn:schemas-microsoft-com:asm.v2" xmlns:asmv2="urn:schemas-microsoft-com:asm.v2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:co.v1="urn:schemas-microsoft-com:clickonce.v1" xmlns:asmv3="urn:schemas-microsoft-com:asm.v3" xmlns:dsig="http://www.w3.org/2000/09/xmldsig#" xmlns:co.v2="urn:schemas-microsoft-com:clickonce.v2">
<asmv1:assemblyIdentity name="Example.exe" />
  <description asmv2:iconFile="Example.ico" xmlns="urn:schemas-microsoft-com:asm.v1" />

<dependency>
  <dependentAssembly dependencyType="install" size="123">
  </dependentAssembly>
</dependency>

 <file name="PopulatedFile.dll.deploy" size="123">
 </file>
</asmv1:assembly>

After a while I got it, with some help from this Forum.

   //does currently only delete the "<dependency></dependency>"-Node
xml.Descendants().Where(x => x.Name.LocalName == "dependentAssembly" && (string)x.Attribute("dependencyType") == "install").Select(x => x.Parent).Remove();
xml.Save(filePath);

So far so good, but as i added .Remove(); for the <file></file>-Node that the Code looked like that:

xml.Descendants().Where(x => x.Name.LocalName == "dependentAssembly" && (string)x.Attribute("dependencyType") == "install").Select(x => x.Parent).Remove();
xml.Descendants().Where(x => x.Name == "file").Remove();
xml.Save(filePath);

I noticed that the Manifest-File has added, infront of almost every Node, asmv2: and the <dependency>-Nodes got deleted. It would be better when <dependency>/<file>-Nodes get deleted and there would be any asmv2.

Just like that:

 <?xml version="1.0" encoding="utf-8"?>
 <asmv1:assembly xsi:schemaLocation="urn:schemas-microsoft-com:asm.v1 assembly.adaptive.xsd" manifestVersion="1.0" xmlns:asmv1="urn:schemas-microsoft-com:asm.v1" xmlns="urn:schemas-microsoft-com:asm.v2" xmlns:asmv2="urn:schemas-microsoft-com:asm.v2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:co.v1="urn:schemas-microsoft-com:clickonce.v1" xmlns:asmv3="urn:schemas-microsoft-com:asm.v3" xmlns:dsig="http://www.w3.org/2000/09/xmldsig#" xmlns:co.v2="urn:schemas-microsoft-com:clickonce.v2">
 <asmv1:assemblyIdentity name="Example.exe" />
  <description asmv2:iconFile="Example.ico" xmlns="urn:schemas-microsoft-com:asm.v1" />

  <asmv2:file name="PopulatedFile.dll.deploy" size="123">
  </asmv2:file>

  </asmv1:assembly>

The consiquence is that the File is not openable anymore with MageUi.exe.

So i started to research also on this Forum, and got as answer its the Namespace. xmlns:asmv2="urn:schemas-microsoft-com:asm.v2"

So finally: My question is How could i solve this?

As always: You can edit this so it gets more specific or even more correnct (maybe i didn't explained the Populate-Files right) Please correct me in any way but be constructive :)