remove struct for consistency

Author: michaelrj-google

libc/src/sys/socket/recvfrom.h

@@ -18,8 +18,7 @@
 namespace LIBC_NAMESPACE_DECL {
 
 ssize_t recvfrom(int sockfd, void *buf, size_t len, int flags,
-                 struct sockaddr *__restrict src_addr,
-                 socklen_t *__restrict addrlen);
+                 sockaddr *__restrict src_addr, socklen_t *__restrict addrlen);
 
 } // namespace LIBC_NAMESPACE_DECL