slides: remove bad graphic and replace it w/ a short block of text

doc/slides/slides.tex

@@ -127,11 +127,6 @@
 \subsection{Components}
 
 \begin{frame}{Implementation: Components}
-  \begin{figure}
-    \centering
-    \includegraphics[width=7cm]{figs/components}
-  \end{figure}
-
   \begin{itemize}
     \item Involved in the implementation for \emph{ulo-storage} are the
       following components.
@@ -143,6 +138,11 @@
         \item \emph{Endpoint:} Programming Interface for the permanent
           storage. Essentially the database interface.
       \end{itemize}
+    \item Data flows
+      \begin{align*}
+        \text{Git / File System} \rightarrow \text{Collector}
+        \rightarrow \text{Importer} \rightarrow \text{Endpoint}
+      \end{align*}
   \end{itemize}
 \end{frame}