lttng-tools: remove bogus comment

lttng-tools doesn't require bison or flex, it contains pre-generated
versions of the lexer and parser, so it can build perfectly fine
without bison and flex. We have removed both of these tools from our
mandatory dependencies since a bit of time, the Free Electrons
autobuilders don't have them installed, and the build succeeds.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/lttng-tools/lttng-tools.mk

@@ -15,9 +15,6 @@ LTTNG_TOOLS_LICENSE_FILES = LICENSE
 # dependency. However, having the babeltrace utilities built for the
 # host is very useful, since those tools allow to convert the binary
 # trace format into an human readable format.
-# Since the 2.1.0 release, lttng-tools depends on flex and bison,
-# but they are not added to the dependency list since they are
-# already Buildroot dependencies.
 LTTNG_TOOLS_DEPENDENCIES = liburcu popt host-lttng-babeltrace util-linux
 
 LTTNG_AUTORECONF = YES