Remove unneeded :c:macro: annotation of current macro.

Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
---
 Documentation/kernel-hacking/hacking.rst | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/kernel-hacking/hacking.rst b/Documentation/kernel-hacking/hacking.rst
index bd5401b924427e..a5f7a1df7fb97d 100644
--- a/Documentation/kernel-hacking/hacking.rst
+++ b/Documentation/kernel-hacking/hacking.rst
@@ -345,8 +345,8 @@ routine.
 Before inventing your own cache of often-used objects consider using a
 slab cache in ``include/linux/slab.h``
 
-:c:macro:`current`
-------------------
+current
+-------
 
 Defined in ``include/asm/current.h``
 
-- 
An old man doll... just what I always wanted! - Clara