Delete macro RTC_DEFINE_STATIC_LOCAL.

Code using the macro change to a plain declaration+init of a local
variable.

Also delete includes of <stdint.h> and <stddef.h> from basictypes.h.

Bug: webrtc:6853
Change-Id: I5ffceb449c1bf8f5badb595d5a343a47b0c6deae
Reviewed-on: https://webrtc-review.googlesource.com/78460
Commit-Queue: Niels Moller <nisse@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#23377}
diff --git a/rtc_base/byteorder.h b/rtc_base/byteorder.h
index 85f0cc5..43cfb36 100644
--- a/rtc_base/byteorder.h
+++ b/rtc_base/byteorder.h
@@ -11,6 +11,8 @@
 #ifndef RTC_BASE_BYTEORDER_H_
 #define RTC_BASE_BYTEORDER_H_
 
+#include <stdint.h>
+
 #if defined(WEBRTC_POSIX) && !defined(__native_client__)
 #include <arpa/inet.h>
 #endif