Fix some warnings

src/etcd_state_client.cpp

@@ -89,7 +89,7 @@ void etcd_state_client_t::etcd_call_oneshot(std::string etcd_address, std::strin
         "Connection: close\r\n"
         "\r\n"+req;
     auto http_cli = http_init(tfd);
-    auto cb = [this, http_cli, callback](const http_response_t *response)
+    auto cb = [http_cli, callback](const http_response_t *response)
     {
         std::string err;
         json11::Json data;

src/nfs_conn.cpp

@@ -139,7 +139,7 @@ static int nfs3_getattr_proc(void *opaque, rpc_op_t *rop)
     }
     else
     {
-        uint64_t inode_num;
+        uint64_t inode_num = 0;
         auto inode_num_it = self->parent->inode_by_hash.find(dirhash);
         if (inode_num_it != self->parent->inode_by_hash.end())
             inode_num = inode_num_it->second;
@@ -206,7 +206,7 @@ static int nfs3_setattr_proc(void *opaque, rpc_op_t *rop)
             { "image", inode_cfg.name },
             { "resize", (uint64_t)args->new_attributes.size.size },
             { "force_size", true },
-        }), [self, rop](const cli_result_t & r)
+        }), [rop](const cli_result_t & r)
         {
             SETATTR3res *reply = (SETATTR3res*)rop->reply;
             *reply = (SETATTR3res){ .status = vitastor_nfs_map_err(r.err) };