gprs: Remove left over for counting llc frames

These variables were used to verify how many LLC frames were
seen.
diff --git a/src/osmo_client_core.c b/src/osmo_client_core.c
index d116b1b..1db8edc 100644
--- a/src/osmo_client_core.c
+++ b/src/osmo_client_core.c
@@ -43,9 +43,6 @@
 #define UDP_LEN		sizeof(struct udphdr)
 #define NS_LEN		1
 
-static int saw_llc = 0;
-static int failed_to_parse = 0;
-
 static int check_gprs(const u_char *data, bpf_u_int32 len)
 {
 	struct tlv_parsed tp;