av{codec,util}/tests: Remove pointless undefs

Before commit e96d90eed6 lavu/internal.h
contained redefined various discouraged/forbidden functions to induce
compilation failures upon use, like e.g.
 #define malloc please_use_av_malloc
In order to use these functions, some files had to undefine these
macros. This commit removes the remaining pointless undefs.

Reviewed-by: Rémi Denis-Courmont <remi@remlab.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

libavcodec/jacosubdec.c

@@ -32,8 +32,6 @@
 #include "libavutil/bprint.h"
 #include "libavutil/time_internal.h"
 
-#undef time
-
 static int insert_text(AVBPrint *dst, const char *in, const char *arg)
 {
     av_bprintf(dst, "%s", arg);

libavcodec/tests/motion.c

@@ -36,8 +36,6 @@
 #include "libavutil/mem.h"
 #include "libavutil/time.h"
 
-#undef printf
-
 #define WIDTH 64
 #define HEIGHT 64
 

libavcodec/tests/snowenc.c

@@ -20,10 +20,6 @@
 
 #include "libavcodec/snowenc.c"
 
-#undef malloc
-#undef free
-#undef printf
-
 #include "libavutil/lfg.h"
 #include "libavutil/mathematics.h"
 #include "libavutil/mem.h"

libavfilter/tests/formats.c

@@ -22,8 +22,6 @@
 #include "libavfilter/audio.h"
 #include "libavfilter/formats.c"
 
-#undef printf
-
 const int64_t avfilter_all_channel_layouts[] = {
     AV_CH_FRONT_CENTER,
     AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY,

libavformat/sbgdec.c

@@ -905,7 +905,6 @@ static int expand_timestamps(void *log, struct sbg_script *s)
         av_log(log, AV_LOG_WARNING,
                "Scripts with mixed absolute and relative timestamps can give "
                "unexpected results (pause, seeking, time zone change).\n");
-#undef time
         time(&now0);
         tm = localtime_r(&now0, &tmpbuf);
         now = tm ? tm->tm_hour * 3600 + tm->tm_min * 60 + tm->tm_sec :

libavutil/file_open.c

@@ -120,7 +120,6 @@ int avpriv_tempfile(const char *prefix, char **filename, int log_offset, void *l
     if(!ptr)
         ptr= tempnam(".", prefix);
     *filename = av_strdup(ptr);
-#undef free
     free(ptr);
 #else
     return AVERROR(ENOSYS);

libavutil/tests/bprint.c

@@ -21,8 +21,6 @@
 #include "libavutil/avassert.h"
 #include "libavutil/bprint.c"
 
-#undef printf
-
 static void bprint_pascal(AVBPrint *b, unsigned size)
 {
     unsigned i, j;

libavutil/tests/error.c

@@ -18,8 +18,6 @@
 
 #include "libavutil/error.c"
 
-#undef printf
-
 int main(void)
 {
     int i;

libavutil/tests/file.c

@@ -18,8 +18,6 @@
 
 #include "libavutil/file.c"
 
-#undef printf
-
 int main(void)
 {
     uint8_t *buf;

libavutil/tests/imgutils.c

@@ -20,7 +20,6 @@
 #include "libavutil/crc.h"
 #include "libavutil/mem.h"
 
-#undef printf
 static int check_image_fill(enum AVPixelFormat pix_fmt, int w, int h) {
     uint8_t *data[4];
     size_t sizes[4];

libavutil/tests/pca.c

@@ -22,7 +22,6 @@
 #include "libavutil/pca.c"
 #include "libavutil/lfg.h"
 
-#undef printf
 #include <stdio.h>
 #include <stdlib.h>
 

libavutil/tests/random_seed.c

@@ -21,7 +21,6 @@
 #define TEST 1
 #include "libavutil/random_seed.c"
 
-#undef printf
 #define N 256
 #define F 2
 #include <stdio.h>

libswresample/tests/swresample.c

@@ -26,9 +26,7 @@
 
 #include "libswresample/swresample.h"
 
-#undef time
 #include <time.h>
-#undef fprintf
 
 #define SAMPLES 1000
 

tools/fourcc2pixfmt.c

@@ -29,9 +29,6 @@
 #include "libavcodec/raw.h"
 #include "libavcodec/raw_pix_fmt_tags.h"
 
-#undef printf
-#undef fprintf
-
 #if !HAVE_GETOPT
 #include "compat/getopt.c"
 #endif