kill LOOKUP_NO_EVAL, don't bother including namei.h from audit.h

The former has no users left; the latter was only to get LOOKUP_...
values to remapper in audit_inode() and that's an ex-parrot now.

All places that use symbols from namei.h include it either directly
or (in a few cases) via a local header, like fs/autofs/autofs_i.h
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

fs/nfs/nfstrace.h

@@ -207,7 +207,6 @@ TRACE_DEFINE_ENUM(LOOKUP_PARENT);
 TRACE_DEFINE_ENUM(LOOKUP_REVAL);
 TRACE_DEFINE_ENUM(LOOKUP_RCU);
 TRACE_DEFINE_ENUM(LOOKUP_NO_REVAL);
-TRACE_DEFINE_ENUM(LOOKUP_NO_EVAL);
 TRACE_DEFINE_ENUM(LOOKUP_OPEN);
 TRACE_DEFINE_ENUM(LOOKUP_CREATE);
 TRACE_DEFINE_ENUM(LOOKUP_EXCL);
@@ -226,7 +225,6 @@ TRACE_DEFINE_ENUM(LOOKUP_DOWN);
 			{ LOOKUP_REVAL, "REVAL" }, \
 			{ LOOKUP_RCU, "RCU" }, \
 			{ LOOKUP_NO_REVAL, "NO_REVAL" }, \
-			{ LOOKUP_NO_EVAL, "NO_EVAL" }, \
 			{ LOOKUP_OPEN, "OPEN" }, \
 			{ LOOKUP_CREATE, "CREATE" }, \
 			{ LOOKUP_EXCL, "EXCL" }, \

include/linux/audit.h

@@ -11,7 +11,6 @@
 
 #include <linux/sched.h>
 #include <linux/ptrace.h>
-#include <linux/namei.h>  /* LOOKUP_* */
 #include <uapi/linux/audit.h>
 
 #define AUDIT_INO_UNSET ((unsigned long)-1)

include/linux/namei.h

@@ -25,7 +25,6 @@ enum {LAST_NORM, LAST_ROOT, LAST_DOT, LAST_DOTDOT, LAST_BIND};
  *  - dentry cache is untrusted; force a real lookup
  *  - suppress terminal automount
  *  - skip revalidation
- *  - don't fetch xattrs on audit_inode
  */
 #define LOOKUP_FOLLOW		0x0001
 #define LOOKUP_DIRECTORY	0x0002
@@ -35,7 +34,6 @@ enum {LAST_NORM, LAST_ROOT, LAST_DOT, LAST_DOTDOT, LAST_BIND};
 #define LOOKUP_REVAL		0x0020
 #define LOOKUP_RCU		0x0040
 #define LOOKUP_NO_REVAL		0x0080
-#define LOOKUP_NO_EVAL		0x0100
 
 /*
  * Intent data