opentelemetry-sdk: be less picky about deprecated LogRecord interface (open-telemetry#4762)

All code that is emitting API LogRecords will emit this warnings because
the conversion code need to pass the deprecated fields because of Event
still using these fields.
In the meantime we cleanup that warn only if we are not already using
context.

Author: xrmx

opentelemetry-sdk/src/opentelemetry/sdk/_logs/_internal/__init__.py

@@ -234,16 +234,16 @@ def __init__(  # pylint:disable=too-many-locals
         limits: LogLimits | None = None,
         event_name: str | None = None,
     ):
-        if trace_id or span_id or trace_flags:
-            warnings.warn(
-                "LogRecord init with `trace_id`, `span_id`, and/or `trace_flags` is deprecated since 1.35.0. Use `context` instead.",
-                LogDeprecatedInitWarning,
-                stacklevel=2,
-            )
-
         if not context:
             context = get_current()
 
+            if trace_id or span_id or trace_flags:
+                warnings.warn(
+                    "LogRecord init with `trace_id`, `span_id`, and/or `trace_flags` is deprecated since 1.35.0. Use `context` instead.",
+                    LogDeprecatedInitWarning,
+                    stacklevel=2,
+                )
+
         span = get_current_span(context)
         span_context = span.get_span_context()