Remove Windows-specific code from Trace.h

libcutils builds for Windows, so there is no need to handle Windows
differently in Trace.h.
    
Bug: 322360037
Test: build libutils for Windows

Change-Id: If17de95a2222c7d17c74988695d68754f06957ea
diff --git a/libutils/include/utils/Trace.h b/libutils/include/utils/Trace.h
index 9986bf5..1809100 100644
--- a/libutils/include/utils/Trace.h
+++ b/libutils/include/utils/Trace.h
@@ -17,13 +17,6 @@
 #ifndef ANDROID_TRACE_H
 #define ANDROID_TRACE_H
 
-#if defined(_WIN32)
-
-#define ATRACE_NAME(...)
-#define ATRACE_CALL()
-
-#else  // !_WIN32
-
 #include <stdint.h>
 
 #include <cutils/trace.h>
@@ -56,6 +49,4 @@
 
 }  // namespace android
 
-#endif  // _WIN32
-
 #endif // ANDROID_TRACE_H