configure: remove missing incompatible_libav_abi references

Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 7400f6421111e4cb2c85ce26e63359c888d02b64)
diff --git a/configure b/configure
index bd76da9..7476ca8 100755
--- a/configure
+++ b/configure
@@ -1645,7 +1645,6 @@
     $PROGRAM_LIST
     $SUBSYSTEM_LIST
     fontconfig
-    incompatible_libav_abi
     memalign_hack
     memory_poisoning
     neon_clobber_test
@@ -1798,7 +1797,6 @@
 HAVE_LIST_PUB="
     bigendian
     fast_unaligned
-    incompatible_libav_abi
 "
 
 HEADERS_LIST="