http: remove unneeded allocation.

Change-Id: I684f5e35647c6ea90fc1e8f1f2a0d02446ba3297
Reviewed-on: https://code.wireshark.org/review/33819
Petri-Dish: Dario Lombardo <[email protected]>
Tested-by: Petri Dish Buildbot
Reviewed-by: Dario Lombardo <[email protected]>

Author: crondaemon

epan/dissectors/packet-http.c

@@ -3169,7 +3169,7 @@ process_header(tvbuff_t *tvb, int offset, int next_offset,
 			auth = wmem_new0(wmem_file_scope(), tap_credential_t);
 			auth->num = pinfo->num;
 			auth->password_hf_id = *headers[hf_index].hf;
-			auth->proto = wmem_strdup(wmem_file_scope(), "HTTP header auth");
+			auth->proto = "HTTP header auth";
 			auth->username = wmem_strdup(wmem_file_scope(), TAP_CREDENTIALS_PLACEHOLDER);
 			tap_queue_packet(credentials_tap, pinfo, auth);
 			break;