[FE training-materials-updates] slides/kernel-power-management: remove useless slides

[Thomas Petazzoni]

Repository : git://git.free-electrons.com/training-materials.git
On branch  : master
Link       : http://git.free-electrons.com/training-materials/commit/?id=83af835a17b9cbaba26b44995b7f2f8d8e40e495

>---------------------------------------------------------------

commit 83af835a17b9cbaba26b44995b7f2f8d8e40e495
Author: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
Date:   Thu May 26 14:43:09 2016 +0200

    slides/kernel-power-management: remove useless slides
    
    Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>


>---------------------------------------------------------------

83af835a17b9cbaba26b44995b7f2f8d8e40e495
 .../kernel-power-management-content.tex            | 35 ++--------------------
 1 file changed, 2 insertions(+), 33 deletions(-)

diff --git a/slides/kernel-power-management-content/kernel-power-management-content.tex b/slides/kernel-power-management-content/kernel-power-management-content.tex
index 84467a5..cd091ff 100644
--- a/slides/kernel-power-management-content/kernel-power-management-content.tex
+++ b/slides/kernel-power-management-content/kernel-power-management-content.tex
@@ -109,41 +109,10 @@
 \end{frame}
 
 \begin{frame}
-  \frametitle{Board-specific Power Management}
-  \begin{itemize}
-  \item Typically takes care of battery and charging management.
-  \item Also defines \code{presuspend} and \code{postsuspend}
-    handlers.
-  \item Example: \kpath{arch/arm/mach-pxa/spitz_pm.c}
-  \end{itemize}
-\end{frame}
-
-\begin{frame}
-  \frametitle{arch/arm/mach-cpu/sleep.S}
-  \begin{itemize}
-  \item Assembly code implementing CPU specific suspend and resume
-    code.
-  \item Note: only found on arm, just 3 other occurrences in other
-    architectures, with other paths.
-  \item First scenario: only a suspend function. The code goes in
-    sleep state (after enabling DRAM self-refresh), and continues with
-    resume code.
-  \item Second scenario: suspend and resume functions. Resume
-    functions called by the bootloader.
-  \item Examples to look at:
-    \begin{itemize}
-    \item \kpath{arch/arm/mach-omap2/sleep24xx.S} (1st case)
-    \item \kpath{arch/arm/mach-pxa/sleep.S} (2nd case)
-    \end{itemize}
-  \end{itemize}
-\end{frame}
-
-\begin{frame}
   \frametitle{Triggering Suspend}
   \begin{itemize}
-  \item Whatever the power management implementation, CPU specific
-    \kstruct{suspend_ops} functions are called by the \kfunc{enter_state}
-    function.
+  \item \kstruct{suspend_ops} functions are called by the
+    \kfunc{enter_state} function.
   \item \kfunc{enter_state} also takes care of executing the suspend
     and resume functions for your devices.
   \item The execution of this function can be triggered from