[#47] client: Do not check context in NetmapSnapshot()

It is passed explicitly, non-nil by convention.

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>

client/netmap.go

@@ -233,11 +233,6 @@ func (x ResNetMapSnapshot) NetMap() netmap.NetMap {
 // Return statuses:
 //   - global (see Client docs).
 func (c *Client) NetMapSnapshot(ctx context.Context, _ PrmNetMapSnapshot) (*ResNetMapSnapshot, error) {
-	// check context
-	if ctx == nil {
-		return nil, errorMissingContext
-	}
-
 	// form request body
 	var body v2netmap.SnapshotRequestBody
 

client/netmap_test.go

@@ -69,11 +69,6 @@ func TestClient_NetMapSnapshot(t *testing.T) {
 	c := newClient(&srv)
 	ctx := context.Background()
 
-	// missing context
-	//nolint:staticcheck
-	_, err = c.NetMapSnapshot(nil, prm)
-	require.ErrorIs(t, err, errorMissingContext, "")
-
 	// request signature
 	srv.errTransport = errors.New("any error")