rand_lib: RAND_poll: Reseed in non-"no-deprecated" builds.

In a non-"no-deprecated" libcrypto build with a default configuration,
RAND_get_rand_method() == RAND_OpenSSL() and so needs to fall through to
the RAND_seed call (used in "no-deprecated" builds) to perform a reseed.

CLA: trivial

crypto/rand/rand_lib.c

@@ -149,14 +149,13 @@ int RAND_poll(void)
         ret = 1;
      err:
         ossl_rand_pool_free(pool);
+        return ret;
     }
-    return ret;
-# else
+# endif
     static const char salt[] = "polling";
 
     RAND_seed(salt, sizeof(salt));
     return 1;
-# endif
 }
 
 # ifndef OPENSSL_NO_DEPRECATED_3_0