net: wget: drop Content-Length processing

We don't do anything with Content-Length except a debug print, and the
strict_strtoul() call is incorrect (it always returns -EINVAL and leaves
content_length to zero due to the presence of trailing characters after
the decimal valuoe of Content-Length). So let's just drop this piece of
code.

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
diff --git a/net/wget.c b/net/wget.c
index 635f82e..361817a 100644
--- a/net/wget.c
+++ b/net/wget.c
@@ -26,7 +26,6 @@
 static const char bootfile3[] = " HTTP/1.0\r\n\r\n";
 static const char http_eom[] = "\r\n\r\n";
 static const char http_ok[] = "200";
-static const char content_len[] = "Content-Length";
 static const char linefeed[] = "\r\n";
 static struct in_addr web_server_ip;
 static int our_port;
@@ -46,7 +45,6 @@
 #define PKTQ_SZ (PKTBUFSRX / 4)
 static struct pkt_qd pkt_q[PKTQ_SZ];
 static int pkt_q_idx;
-static unsigned long content_length;
 static unsigned int packets;
 
 static unsigned int initial_data_seq_num;
@@ -251,17 +249,6 @@
 				   "wget: Connected Pkt %p hlen %x\n",
 				   pkt, hlen);
 
-			pos = strstr((char *)pkt, content_len);
-			if (!pos) {
-				content_length = -1;
-			} else {
-				pos += sizeof(content_len) + 2;
-				strict_strtoul(pos, 10, &content_length);
-				debug_cond(DEBUG_WGET,
-					   "wget: Connected Len %lu\n",
-					   content_length);
-			}
-
 			net_boot_file_size = 0;
 
 			if (len > hlen) {