Staging: lustre: llite: Remove C99 '//' comments

This patch fixes the following checkpatch.pl errors:

ERROR: do not use C99 // comments
538: FILE: drivers/staging/lustre/lustre/llite/rw26.c:538:
//	.orig_aops.readpages      = ll_readpages,
816: FILE: drivers/staging/lustre/lustre/llite/lproc_llite.c:816:
	//{ "mntpt_path",   ll_rd_path,	     0, 0 },
826: FILE: drivers/staging/lustre/lustre/llite/lproc_llite.c:826:
	//{ "filegroups",   lprocfs_rd_filegroups,  0, 0 },

Signed-off-by: Tina Ruchandani <ruchandani.tina@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>