don't fatal if libfido2 not found

spotted by dtucker@

1 files changed, 1 insertions, 2 deletions

diff --git a/configure.ac b/configure.ac
index 6e32374cc..3814db66b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3088,8 +3088,7 @@ if test "x$enable_sk" = "xyes" ; then
                         AC_DEFINE([ENABLE_SK_INTERNAL], [],
                             [Enable for built-in U2F/FIDO support])
                         enable_sk="built-in"
-                ],
-                [ AC_MSG_ERROR([libfido2 not found]) ],
+                ], [ ],
                 [ $OTHERLIBS ]
         )
 fi