Clean up CSTYLEDs

69 CSTYLED BEGINs remain, appx. 30 of which can be removed if cstyle(1)
had a useful policy regarding
  CALL(ARG1,
  	ARG2,
  	ARG3);
above 2 lines. As it stands, it spits out *both*
  sysctl_os.c: 385: continuation line should be indented by 4 spaces
  sysctl_os.c: 385: indent by spaces instead of tabs
which is very cool

Another >10 could be fixed by removing "ulong" &al. handling.
I don't foresee anyone actually using it intentionally
(does it even exist in modern headers? why did it in the first place?).

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #12993

include/sys/fs/zfs.h

@@ -1185,11 +1185,9 @@ typedef struct vdev_stat {
 	uint64_t	vs_noalloc;		/* allocations halted?	*/
 } vdev_stat_t;
 
-/* BEGIN CSTYLED */
 #define	VDEV_STAT_VALID(field, uint64_t_field_count) \
-    ((uint64_t_field_count * sizeof (uint64_t)) >=	 \
-     (offsetof(vdev_stat_t, field) + sizeof (((vdev_stat_t *)NULL)->field)))
-/* END CSTYLED */
+((uint64_t_field_count * sizeof (uint64_t)) >=	 \
+	(offsetof(vdev_stat_t, field) + sizeof (((vdev_stat_t *)NULL)->field)))
 
 /*
  * Extended stats

include/sys/lua/lauxlib.h

@@ -1,4 +1,3 @@
-/* BEGIN CSTYLED */
 /*
 ** $Id: lauxlib.h,v 1.120.1.1 2013/04/12 18:48:47 roberto Exp $
 ** Auxiliary functions for building Lua libraries
@@ -171,5 +170,3 @@ LUALIB_API void (luaL_openlib) (lua_State *L, const char *libname,
 
 
 #endif
-
-/* END CSTYLED */

include/sys/lua/lua.h

@@ -1,4 +1,3 @@
-/* BEGIN CSTYLED */
 /*
 ** $Id: lua.h,v 1.285.1.4 2015/02/21 14:04:50 roberto Exp $
 ** Lua - A Scripting Language
@@ -442,4 +441,3 @@ struct lua_Debug {
 
 
 #endif
-/* END CSTYLED */

include/sys/lua/luaconf.h

@@ -1,4 +1,3 @@
-/* BEGIN CSTYLED */
 /*
 ** $Id: luaconf.h,v 1.176.1.2 2013/11/21 17:26:16 roberto Exp $
 ** Configuration file for Lua
@@ -555,4 +554,3 @@ extern int lcompat_hashnum(int64_t);
 #endif
 
 #endif
-/* END CSTYLED */

include/sys/lua/lualib.h

@@ -1,4 +1,3 @@
-/* BEGIN CSTYLED */
 /*
 ** $Id: lualib.h,v 1.43.1.1 2013/04/12 18:48:47 roberto Exp $
 ** Lua standard libraries
@@ -54,4 +53,3 @@ LUALIB_API void (luaL_openlibs) (lua_State *L);
 
 
 #endif
-/* END CSTYLED */