net/hinic: remove check around pthread_mutex_init

> pthread_mutex_init always returns 0. The other mutex functions
> return 0 on success and a non-zero error code on error.

Link: https://man7.org/linux/man-pages/man3/pthread_mutex_lock.3.html
Bugzilla ID: 1586
Cc: Ziyang Xuan <xuanziyang2@huawei.com>
Cc: Xiaoyun Wang <cloud.wangxiaoyun@huawei.com>
Signed-off-by: Ariel Otilibili <otilibil@eurecom.fr>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>

drivers/net/hinic/base/hinic_compat.h

@@ -200,13 +200,7 @@ static inline u16 ilog2(u32 n)
 static inline int hinic_mutex_init(pthread_mutex_t *pthreadmutex,
 					const pthread_mutexattr_t *mattr)
 {
-	int err;
-
-	err = pthread_mutex_init(pthreadmutex, mattr);
-	if (unlikely(err))
-		PMD_DRV_LOG(ERR, "Fail to initialize mutex, error: %d", err);
-
-	return err;
+	return pthread_mutex_init(pthreadmutex, mattr);
 }
 
 static inline int hinic_mutex_destroy(pthread_mutex_t *pthreadmutex)