remove TLDP

Author: vladak

intro.tex

@@ -303,7 +303,6 @@
 %Internals of UNIX System~V Release 4}. Prentice Hall, 1994
 \item McDougall, R.; Mauro, J.: \emsl{Solaris Internals}. Prentice Hall; \nth{2}
 edition, 2006.
-\item \emsl{Linux Documentation Project}. \url{http://tldp.org/}
 \end{enumerate}
 \end{slide}
 
@@ -325,7 +324,6 @@
 4.4 BSD Operating System} by the same author.
 \item The best book on the Solaris operating system.  The system version in the
 book is Solaris~10.
-\item Linux documentation project home page.
 \end{enumerate}
 
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