Rename xlookup64 to xlookup

* defs.h (xlookup): Remove.
(xlookup64): Rename to xlookup.
* util.c (xlookup64): Rename to xlookup.
diff --git a/defs.h b/defs.h
index 04dcb83..1e2afa7 100644
--- a/defs.h
+++ b/defs.h
@@ -542,7 +542,7 @@
 extern int pathtrace_match(struct tcb *);
 extern int getfdpath(struct tcb *, int, char *, unsigned);
 
-extern const char *xlookup64(const struct xlat *, const uint64_t);
+extern const char *xlookup(const struct xlat *, const uint64_t);
 extern const char *xlat_search(const struct xlat *, const size_t, const uint64_t);
 
 extern unsigned long get_pagesize(void);
@@ -713,12 +713,6 @@
 	printxvals(val, dflt, x, NULL);
 }
 
-static inline const char *
-xlookup(const struct xlat *x, const unsigned int val)
-{
-	return xlookup64(x, val);
-}
-
 /* Strace log generation machinery.
  *
  * printing_tcp: tcb which has incomplete line being printed right now.