Remove pthreads patch, roll in new patches, disable unchecked bit readers.

libavcodec/allcodecs.c

Index: libavcodec/allcodecs.c
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index 83fab259be46a6e71a6524cf956c18b881473394..06b872ce52bae44fc70ada84f546aa616e453eff 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -45,15 +45,6 @@
           extern AVBitStreamFilter ff_##x##_bsf; \
           if(CONFIG_##X##_BSF)     av_register_bitstream_filter(&ff_##x##_bsf); }
 
-#ifdef PTW32_STATIC_LIB
-#include "pthread.h"
-static void detach_ptw32(void)
-{
-    pthread_win32_thread_detach_np();
-    pthread_win32_process_detach_np();
-}
-#endif
-
 void avcodec_register_all(void)
 {
     static int initialized;
@@ -62,11 +53,6 @@ void avcodec_register_all(void)
         return;
     initialized = 1;
 
-#ifdef PTW32_STATIC_LIB
-    pthread_win32_process_attach_np();
-    pthread_win32_thread_attach_np();
-    atexit(detach_ptw32);
-#endif
     /* hardware accelerators */
     REGISTER_HWACCEL (H263_VAAPI, h263_vaapi);
     REGISTER_HWACCEL (H264_DXVA2, h264_dxva2);