cleanup: remove useless "inline" keywords

avoid a function call for a commonly used one-liner.
followup for 0627929f

sql/wsrep_mysqld.cc

@@ -2293,7 +2293,7 @@ static int wsrep_create_sp(THD *thd, uchar** buf, size_t* buf_len)
 }
 
 
-extern inline int wsrep_on(THD *thd)
+extern int wsrep_on(THD *thd)
 {
   return (int)(WSREP(thd));
 }

storage/innobase/include/lock0lock.h

@@ -1026,8 +1026,7 @@ lock_get_info(
 
 /*******************************************************************//**
 @return whether wsrep_on is true on trx->mysql_thd*/
-bool
-wsrep_on_trx(const trx_t* trx);
+#define wsrep_on_trx(trx) ((trx)->mysql_thd && wsrep_on((trx)->mysql_thd))
 
 #endif /* WITH_WSREP */
 #ifndef UNIV_NONINL

storage/innobase/lock/lock0lock.cc

@@ -8213,11 +8213,3 @@ lock_get_info(
 
 	return info;
 }
-
-#ifdef WITH_WSREP
-bool inline
-wsrep_on_trx(const trx_t* trx)
-{
-    return trx->mysql_thd && wsrep_on(trx->mysql_thd);
-}
-#endif /* WITH_WSREP */

storage/xtradb/include/lock0lock.h

@@ -1028,14 +1028,8 @@ Get lock mode and table/index name
 std::string
 lock_get_info(
 	const lock_t*);
-#ifdef WITH_WSREP
 
-/*******************************************************************//**
-@return whether wsrep_on is true on trx->mysql_thd*/
-bool
-wsrep_on_trx(const trx_t* trx);
-
-#endif /* WITH_WSREP */
+#define wsrep_on_trx(trx) ((trx)->mysql_thd && wsrep_on((trx)->mysql_thd))
 
 #ifndef UNIV_NONINL
 #include "lock0lock.ic"

storage/xtradb/lock/lock0lock.cc

@@ -8336,11 +8336,3 @@ lock_get_info(
 
 	return info;
 }
-
-#ifdef WITH_WSREP
-bool inline
-wsrep_on_trx(const trx_t* trx)
-{
-    return trx->mysql_thd && wsrep_on(trx->mysql_thd);
-}
-#endif /* WITH_WSREP */