Remove duplicate check for $_faad_external = auto.

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@19472 b3059339-0415-0410-9bf9-f77b7e298cf2

configure

@@ -5809,8 +5809,6 @@ if test "$_faad_internal" = auto ; then
   fi
 elif test "$_faad_internal" = no && test "$_faad_external" = auto ; then
   _ld_faad='-lfaad'
-  # external faad: check if it's really faad2 :)
-  if test "$_faad_external" = auto ; then
     _faad_external=no
     cat > $TMPC << EOF
 #include <faad.h>
@@ -5820,7 +5818,6 @@ elif test "$_faad_internal" = no && test "$_faad_external" = auto ; then
 int main(void) { faacDecHandle testhand; faacDecFrameInfo testinfo; testhand = faacDecOpen(); faacDecInit(0, 0, 0, 0, 0); return 0; }
 EOF
     cc_check $_ld_faad $_ld_lm && _faad_external=yes
-  fi
 fi
 
 if test "$_faad_internal" = yes ; then