src: remove empty comment in node_http2.h
This commit removes an "empty" comment in node_http2.h that I don't think was intentional and as far as I can tell not a doxygen comment or anything like that.
This was not picked up by the cpp linter so a suggestion has also been added to the CheckComment function to detect these in the future.
Checklist
-
make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
commit message follows commit guidelines
Affected core subsystem(s)
src, tools