vendor: update buildkit to 2f99651

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

vendor/go.opentelemetry.io/otel/metric/sdkapi/noop.go

@@ -0,0 +1,52 @@
+// Copyright The OpenTelemetry Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package sdkapi // import "go.opentelemetry.io/otel/metric/sdkapi"
+
+import (
+	"context"
+
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/metric/number"
+)
+
+type noopInstrument struct{}
+type noopSyncInstrument struct{ noopInstrument }
+type noopAsyncInstrument struct{ noopInstrument }
+
+var _ SyncImpl = noopSyncInstrument{}
+var _ AsyncImpl = noopAsyncInstrument{}
+
+// NewNoopSyncInstrument returns a No-op implementation of the
+// synchronous instrument interface.
+func NewNoopSyncInstrument() SyncImpl {
+	return noopSyncInstrument{}
+}
+
+// NewNoopAsyncInstrument returns a No-op implementation of the
+// asynchronous instrument interface.
+func NewNoopAsyncInstrument() AsyncImpl {
+	return noopAsyncInstrument{}
+}
+
+func (noopInstrument) Implementation() interface{} {
+	return nil
+}
+
+func (noopInstrument) Descriptor() Descriptor {
+	return Descriptor{}
+}
+
+func (noopSyncInstrument) RecordOne(context.Context, number.Number, []attribute.KeyValue) {
+}