Merge #133947

133947: kvclient/rangefeed: fix rangefeed restart metrics r=stevendanna a=wenyihu6

Previously, we bump the metrics in restartActiveRangefeed
and again in handleRangefeedError. This patch addresses
the issue of double counting metrics during rangefeed
restarts.

Informs: #129486
Release note: fixed a metrics bug in rangefeed restarts
introduced since v23.2

Co-authored-by: Wenyi Hu <wenyi@cockroachlabs.com>

pkg/kv/kvclient/kvcoord/dist_sender_rangefeed.go

@@ -548,8 +548,6 @@ type rangefeedErrorInfo struct {
 func handleRangefeedError(
 	ctx context.Context, metrics *DistSenderRangeFeedMetrics, err error, spawnedFromManualSplit bool,
 ) (rangefeedErrorInfo, error) {
-	metrics.Errors.RangefeedRestartRanges.Inc(1)
-
 	if err == nil {
 		return rangefeedErrorInfo{}, nil
 	}