Add a thin wrapper around otel Span object

Signed-off-by: Swagat Bora <sbora@amazon.com>

pkg/cri/server/helpers.go

@@ -94,9 +94,7 @@ const (
 	runtimeRunhcsV1 = "io.containerd.runhcs.v1"
 
 	// name prefix for CRI server specific spans
-	criServerSpanPrefix = "pkg.cri.server"
-
-	spanDelimiter = "."
+	criSpanPrefix = "pkg.cri.server"
 )
 
 // makeSandboxName generates sandbox name from sandbox metadata. The name
@@ -515,10 +513,3 @@ func copyResourcesToStatus(spec *runtimespec.Spec, status containerstore.Status)
 	}
 	return status
 }
-
-func makeSpanName(funcName string) string {
-	return strings.Join([]string{
-		criServerSpanPrefix,
-		funcName,
-	}, spanDelimiter)
-}