[sqlite] Remove obsolete reference version 3.8.7.4.

third_party/sqlite/sqlite-src-3080704/tool/extract.c

-/*
-** Extract a range of bytes from a file.
-**
-** Usage:
-**
-**    extract FILENAME OFFSET AMOUNT
-**
-** The bytes are written to standard output.
-*/
-#include <stdio.h>
-#include <stdlib.h>
-
-int main(int argc, char **argv){
-  FILE *f;
-  char *zBuf;
-  int ofst;
-  int n;
-  size_t got;
-
-  if( argc!=4 ){
-    fprintf(stderr, "Usage: %s FILENAME OFFSET AMOUNT\n", *argv);
-    return 1;
-  }
-  f = fopen(argv[1], "rb");
-  if( f==0 ){
-    fprintf(stderr, "cannot open \"%s\"\n", argv[1]);
-    return 1;
-  }
-  ofst = atoi(argv[2]);
-  n = atoi(argv[3]);
-  zBuf = malloc( n );
-  if( zBuf==0 ){
-    fprintf(stderr, "out of memory\n");
-    return 1;
-  }
-  fseek(f, ofst, SEEK_SET);
-  got = fread(zBuf, 1, n, f);
-  fclose(f);
-  if( got<n ){
-    fprintf(stderr, "got only %d of %d bytes\n", got, n);
-    return 1;
-  }else{
-    fwrite(zBuf, 1, n, stdout);
-  }
-  return 0;
-}