Removing Forgiven Nulls (#7745)

## Summary of changes

Fixing some nulls I added when rushing in my previous OTLP Logs PR.

## Reason for change
Is a most do.

## Implementation details

## Test coverage

## Other details
<!-- Fixes #{issue} -->


<!--  ⚠️ Note:

Where possible, please obtain 2 approvals prior to merging. Unless
CODEOWNERS specifies otherwise, for external teams it is typically best
to have one review from a team member, and one review from apm-dotnet.
Trivial changes do not require 2 reviews.

MergeQueue is NOT enabled in this repository. If you have write access
to the repo, the PR has 1-2 approvals (see above), and all of the
required checks have passed, you can use the Squash and Merge button to
merge the PR. If you don't have write access, or you need help, reach
out in the #apm-dotnet channel in Slack.
-->

Author: link04

tracer/src/Datadog.Trace/ClrProfiler/AutoInstrumentation/Logging/ILogger/DirectSubmission/Formatting/OtlpLogEventBuilder.cs

@@ -83,7 +83,8 @@ private static (TraceId TraceId, ulong SpanId, int Flags) ExtractTraceContext()
             var ddSpan = Tracer.Instance.ActiveScope?.Span as Span;
             if (ddSpan != null)
             {
-                return (ddSpan.TraceId128, ddSpan.SpanId, SamplingPriorityValues.IsKeep(ddSpan.Context.SamplingPriority!.Value) ? 1 : 0);
+                var flags = ddSpan.Context.SamplingPriority is { } samplingPriority && SamplingPriorityValues.IsKeep(samplingPriority) ? 1 : 0;
+                return (ddSpan.TraceId128, ddSpan.SpanId, flags);
             }
 
             var activity = System.Diagnostics.Activity.Current;

tracer/src/Datadog.Trace/OpenTelemetry/Logs/OtlpExporter.cs

@@ -187,12 +187,12 @@ private Task<bool> SendHttpProtobufRequest(byte[] otlpPayload)
         try
         {
             var deadline = DateTime.UtcNow.AddMilliseconds(_timeoutMs);
-            var resp = _httpExportClient!.SendExportRequest(
+            var resp = _httpExportClient?.SendExportRequest(
                 otlpPayload,
                 otlpPayload.Length,
                 deadline);
 
-            return Task.FromResult(resp.Success);
+            return Task.FromResult(resp is { Success: true });
         }
         catch (Exception ex)
         {
@@ -218,11 +218,11 @@ private Task<bool> SendGrpcRequest(byte[] otlpPayload)
                 (uint)dataLength);
 
             var deadline = DateTime.UtcNow.AddMilliseconds(_timeoutMs);
-            var resp = _grpcClient!.SendExportRequest(
+            var resp = _grpcClient?.SendExportRequest(
                 otlpPayload,
                 otlpPayload.Length,
                 deadline);
-            return Task.FromResult(resp.Success);
+            return Task.FromResult(resp is { Success: true });
         }
         catch (Exception ex)
         {