[LPM] Remove unneeded comment.

TBR=aarya@chromium.org, mbarbella@chromium.org

Change-Id: I2aae3d83db9365f0c429070386c671090b89943b
Reviewed-on: https://chromium-review.googlesource.com/905224Reviewed-by: Jonathan Metzman <metzman@chromium.org>
Reviewed-by: Martin Barbella <mbarbella@chromium.org>
Commit-Queue: Jonathan Metzman <metzman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#534748}

testing/libfuzzer/proto/BUILD.gn

@@ -55,8 +55,7 @@ if (!is_win) {
     #  Can't disable instrumentation because of container-overflow false
     # positives.
 
-    # Assertion failures and integer oveflows in skia are uninteresting. Don't
-    # use debug builds on CF.
+    # Assertion failures and integer oveflows in skia are uninteresting.
     if (is_debug || is_ubsan) {
       all_dependent_configs = [ "//testing/libfuzzer:no_clusterfuzz" ]
     }