Delete Element in XML

I try to delete an element in Xml but currently im just removing the "sub-element" XML:

<dependency>
<dependentAssembly dependencyType="preRequisite">
  </dependentAssembly>
</dependency>

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

Current Code:

string filePath = "C:\\Example\\Example.exe.manifest"
var xml = XElement.Load(filePath);
xml.Descendants().Where(x => x.Name.LocalName == "dependentAssembly" && (string)x.Attribute("dependencyType") == "install").Remove();
xml.Save(filePath);

Xml after Code:

<dependency>
 <dependentAssembly dependencyType="preRequisite">
 </dependentAssembly>
</dependency>
<dependency>
</dependency>

As you see im currently just deleting <dependentAssembly> but i try to delete <dependency>

How shall i do That?

i never did that much in XML so i try to learn from you guys :)