I would like to remove the navigation dot in Beamer that corresponds to the title page.
Here is a MWE. As you can see there is an empty dot for for the title page... how can I get rid of it?
NOTE I use the trick here Beamer navigation circles without subsections? to remove subsection navigation dots.
\documentclass{beamer}
\usetheme{Frankfurt}
\usecolortheme{dove}
\usepackage{remreset}
\makeatletter
\@removefromreset{subsection}{section}
\makeatother
\setcounter{subsection}{1}
\setbeamertemplate{items}[circle]
\title{Stackexchange is great}
\author{John}
\date{\today}
\begin{document}
\begin{frame}[plain]
\titlepage
\end{frame}
\section{Motivation}
\begin{frame}{A sample slide}
hello
\end{frame}
\begin{frame}{A sample slide}
hello
\end{frame}
\begin{frame}{A sample slide}
world
\end{frame}
\end{document}