Revert unused fixedpoint declaration.

Originally committed as revision 9959 to svn://svn.ffmpeg.org/ffmpeg/trunk

configure

@@ -139,7 +139,6 @@ show_help(){
   echo "  --disable-ffplay         disable ffplay build"
   echo "  --enable-small           optimize for size instead of speed"
   echo "  --enable-memalign-hack   emulate memalign, interferes with memory debuggers"
-  echo "  --enable-fixedpoint      enable the use of fixed point calculations"
   echo "  --disable-encoder=NAME   disables encoder NAME"
   echo "  --enable-encoder=NAME    enables encoder NAME"
   echo "  --disable-decoder=NAME   disables decoder NAME"
@@ -583,7 +582,6 @@ CONFIG_LIST='
     ffmpeg
     ffplay
     ffserver
-    fixedpoint
     gpl
     gprof
     gray