cleanup

sdk/trace/batch_span_processor.go

@@ -158,9 +158,7 @@ func (bsp *batchSpanProcessor) ForceFlush(ctx context.Context) error {
 	if bsp.e != nil {
 		wait := make(chan error)
 		go func() {
-			if err := bsp.exportSpans(ctx); err != nil {
-				wait <- err
-			}
+			wait <- bsp.exportSpans(ctx)
 			close(wait)
 		}()
 		// Wait until the export is finished or the context is cancelled/timed out

sdk/trace/batch_span_processor_test.go

@@ -407,12 +407,12 @@ func TestBatchSpanProcessorDropBatchIfFailed(t *testing.T) {
 	}
 }
 
-func assertMaxSpanDiff(t *testing.T, want int, got int, maxDif int) {
+func assertMaxSpanDiff(t *testing.T, want, got, maxDif int) {
 	spanDifference := want - got
 	if spanDifference < 0 {
 		spanDifference = spanDifference * -1
 	}
-	if spanDifference > maxDif || spanDifference < 0 {
+	if spanDifference > maxDif {
 		t.Errorf("number of exported span not equal to or within %d less than: got %+v, want %+v\n",
 			maxDif, got, want)
 	}