Delete root header file typedef.h.

Usage replaced with stdint.h, rtc_base/system/arch.h and
rtc_base/system/unused.h, as appropriate.

Bug: webrtc:6854
Change-Id: I97225465d14b969903d92979e2df3c3c05d35f18
Reviewed-on: https://webrtc-review.googlesource.com/90249
Reviewed-by: Niklas Enbom <niklas.enbom@webrtc.org>
Reviewed-by: Fredrik Solenberg <solenberg@webrtc.org>
Commit-Queue: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#24100}
diff --git a/common_audio/signal_processing/complex_fft_tables.h b/common_audio/signal_processing/complex_fft_tables.h
index 5171040..90fac07 100644
--- a/common_audio/signal_processing/complex_fft_tables.h
+++ b/common_audio/signal_processing/complex_fft_tables.h
@@ -11,7 +11,7 @@
 #ifndef COMMON_AUDIO_SIGNAL_PROCESSING_COMPLEX_FFT_TABLES_H_
 #define COMMON_AUDIO_SIGNAL_PROCESSING_COMPLEX_FFT_TABLES_H_
 
-#include "typedefs.h"  // NOLINT(build/include)
+#include <stdint.h>
 
 static const int16_t kSinTable1024[] = {
     0,      201,    402,    603,    804,    1005,   1206,   1406,   1607,