Remove useless slide titles

slides.tex

@@ -152,7 +152,7 @@ Segmentation fault.
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \subsection{Stack frames and unwinding}
 
-\begin{frame}{Call stack and registers}
+\begin{frame}
     \begin{columns}[c]
         \begin{column}{0.55\textwidth}
             \begin{center}
@@ -293,7 +293,7 @@ Segmentation fault.
 \newcommand{\LinusSource}{
     \hfill ---~Linus Torvalds, 2012
 }
-\begin{frame}{A debugging hell: Linux kernel}
+\begin{frame}
     \LinusMailOne{}
 
     \only<1-2>{
@@ -334,7 +334,7 @@ Segmentation fault.
     \end{block}}
 \newcommand{\tblhl}{\rowcolor{Tan}}
 
-\begin{frame}{Working on an example}
+\begin{frame}
     \newcommand{\firsttblrows}{
 \tblrowval{\hspace{-2ex}<{\bf foo}>:}{}{\textbf{CFA}}{\textbf{ra}}
 \rowonly<3>{\tblhl{}}  \tblrowval{push}{\%r15}{rsp+8}{c-8}
@@ -432,7 +432,7 @@ Segmentation fault.
 
 \subsection{Compilation ahead-of-time}
 
-\begin{frame}{Compilation overview}
+\begin{frame}
     \begin{itemize}
         \item Compiled to \alert{C code}
         \item C code then \alert{compiled to native binary} (gcc)
@@ -449,7 +449,7 @@ Segmentation fault.
 
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\begin{frame}[shrink]{Compilation example: generated C}
+\begin{frame}[shrink]
     \lstinputlisting[language=C]{src/fib7/fib7.eh_elf_basic.c}
 
     \pause{}
@@ -462,7 +462,7 @@ Segmentation fault.
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
-\begin{frame}{Mostly plug-and-play: libunwind interface}
+\begin{frame}
     \begin{itemize}
         \item \alert{libunwind}: \textit{de facto} standard library for
             unwinding
@@ -502,7 +502,7 @@ Segmentation fault.
 \section*{Conclusion}
 \setcounter{section}{0}
 
-\begin{frame}{A fragment of our article}
+\begin{frame}
     The original article \textbf{Reliable and Fast DWARF-based Stack Unwinding}
     contains