remove asp:content programatically

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C#

SharePoint2013

my page.aspx contains this code that overrides the masterpage, and it is dynamically generated:

<asp:Content ContentPlaceHolderId="PlaceHolderTopNavBar" runat="server">
    <SharePoint:AspMenu
        ID="TopNavigationMenu"
        Runat="server"
        EnableViewState="false"
        DataSourceID="vanillaTopSiteMap"
        AccessKey="<%$Resources:wss,navigation_accesskey%>"
        UseSimpleRendering="true"
        UseSeparateCss="false"
        Orientation="Horizontal"
        StaticDisplayLevels="2"
        AdjustForShowStartingNode="true"
        MaximumDynamicDisplayLevels="2"
        SkipLinkText=""/>

    <asp:SiteMapDataSource
        ShowStartingNode="False"
        SiteMapProvider="SPNavigationProvider"
        id="vanillaTopSiteMap"
        runat="server"
        StartingNodeUrl="sid:1002"/>
</asp:Content>

can I construct a code (C#) that will access page.aspx and delete this content via feature activation in sharepoint?