configure: Don't check for libavcore

libavcore was a never-released bad idea with a short lifespan.

diff --git a/configure b/configure
index 5f6e5f18c2d66b418f660fb7d70798363eb7dcd5..4f2846e9356e892a39be4b14c7bd7a725d93800f 100755 (executable)
--- a/configure
+++ b/configure
@@ -870,7 +870,7 @@ if [ "$lavf" = "auto" ] ; then
     fi
     if [ -z "$LAVF_LIBS" -a -z "$LAVF_CFLAGS" ]; then
         LAVF_LIBS="-lavformat"
-        for lib in -lpostproc -lavcodec -lavcore -lswscale -lavutil -lm -lz -lbz2 $libpthread -lavifil32 -lws2_32; do
+        for lib in -lpostproc -lavcodec -lswscale -lavutil -lm -lz -lbz2 $libpthread -lavifil32 -lws2_32; do
             cc_check "" $lib && LAVF_LIBS="$LAVF_LIBS $lib"
         done
     fi