Remove mention that SDT probes are supported by tracepoints

gdb-best-friend.tex

@@ -231,8 +231,6 @@ process("./example-stap").mark("my_probe") $arg1:long
 		\pause
 		\item{Integrated with the \textit{breakpoint} system.  Support for printing a \probe{}'s argument value.}
 		\pause
-		\item{Supports \textit{tracepoints}.}
-		\pause
 		\item{Not necessary to include debug information in your binary (\texttt{-g} flag); arguments are encoded directly in the asm.}
 		\pause
 		\item{Also possible to use optmization flags (\texttt{-O}).}