checkpatch: remove quote from CamelCase test

Commit be987d9f ("checkpatch: improve CamelCase test for Page") added
it but it shouldn't be there.  Must have been my fault.

Make sure that the tested variable doesn't contain a constant.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Git-commit: 807bd26c4c3e94aced4630ba8369c8941728636b
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git


Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>