SharePoint 2013 - How to remove name of subsite from all subsite page title elements

I have a subsite I created within my sharepoint environment, but only want each of these subsite pages to reflect the name of the page, not the name of the subsite. For example, I want of each subpage to be...

<title>my custom page</title>

not...

<title>subsite name - my custom page</title>

how do we fix this?

what from here needs to change, in order to just get the custom page name...

    <!--MS:<asp:ContentPlaceHolder id="PlaceHolderPageTitle" runat="server">-->
    <!--SPM:<SharePoint:ProjectProperty Property="Title" runat="server"/>-->
    <!--CS: Start Page Field: Title Snippet-->
    <!--SPM:<%@Register Tagprefix="PageFieldFieldValue" Namespace="Microsoft.SharePoint.WebControls" Assembly="Microsoft.SharePoint, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c"%>-->
    <!--MS:<PageFieldFieldValue:FieldValue FieldName="fa564e0f-0c70-4ab9-b863-0177e6ddd247" runat="server">-->
    <!--ME:</PageFieldFieldValue:FieldValue>-->
    <!--CE: End Page Field: Title Snippet-->
    <!--ME:</asp:ContentPlaceHolder>-->