selftests: libs: Drop unused functions

Nothing calls these.
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Danielle Ratson <danieller@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

tools/testing/selftests/net/forwarding/mirror_gre_lib.sh

@@ -101,17 +101,6 @@ fail_test_span_gre_dir()
 	fail_test_span_gre_dir_ips "$tundev" 192.0.2.1 192.0.2.2
 }
 
-test_span_gre_dir()
-{
-	local tundev=$1; shift
-	local direction=$1; shift
-	local forward_type=$1; shift
-	local backward_type=$1; shift
-
-	test_span_gre_dir_ips "$tundev" "$direction" "$forward_type" \
-			      "$backward_type" 192.0.2.1 192.0.2.2
-}
-
 full_test_span_gre_dir()
 {
 	local tundev=$1; shift

tools/testing/selftests/net/forwarding/mirror_lib.sh

@@ -88,16 +88,6 @@ quick_test_span_dir_ips()
 			     "$forward_type" "$backward_type"
 }
 
-fail_test_span_dir_ips()
-{
-	local dev=$1; shift
-	local direction=$1; shift
-	local ip1=$1; shift
-	local ip2=$1; shift
-
-	do_test_span_dir_ips 0 "$dev" "$direction" "$ip1" "$ip2"
-}
-
 test_span_dir_ips()
 {
 	local dev=$1; shift
@@ -118,14 +108,6 @@ test_span_dir_ips()
 	icmp_capture_uninstall $dev
 }
 
-fail_test_span_dir()
-{
-	local dev=$1; shift
-	local direction=$1; shift
-
-	fail_test_span_dir_ips "$dev" "$direction" 192.0.2.1 192.0.2.2
-}
-
 test_span_dir()
 {
 	local dev=$1; shift