throw out lws_websocket_related cruft

Signed-off-by: Andy Green <andy.green@linaro.org>
diff --git a/lib/client-handshake.c b/lib/client-handshake.c
index 9292c03..26ef721 100644
--- a/lib/client-handshake.c
+++ b/lib/client-handshake.c
@@ -197,7 +197,6 @@
 	wsi->u.hdr.name_buffer_pos = 0;
 	wsi->user_space = NULL;
 	wsi->state = WSI_STATE_CLIENT_UNCONNECTED;
-	wsi->u.ws.pings_vs_pongs = 0;
 	wsi->protocol = NULL;
 	wsi->pending_timeout = NO_PENDING_TIMEOUT;
 #ifndef LWS_NO_EXTENSIONS
diff --git a/lib/client-parser.c b/lib/client-parser.c
index ac72f8f..1d91788 100644
--- a/lib/client-parser.c
+++ b/lib/client-parser.c
@@ -279,8 +279,6 @@
 			lwsl_info("client receied pong\n");
 			lwsl_hexdump(&wsi->u.ws.rx_user_buffer[LWS_SEND_BUFFER_PRE_PADDING],
 				    wsi->u.ws.rx_user_buffer_head);
-			/* keep the statistics... */
-			wsi->u.ws.pings_vs_pongs--;
 
 			/* issue it */
 			callback_action = LWS_CALLBACK_CLIENT_RECEIVE_PONG;
diff --git a/lib/output.c b/lib/output.c
index 3b19f40..8962f75 100644
--- a/lib/output.c
+++ b/lib/output.c
@@ -367,7 +367,6 @@
 			break;
 		case LWS_WRITE_PING:
 			n = LWS_WS_OPCODE_07__PING;
-			wsi->u.ws.pings_vs_pongs++;
 			break;
 		case LWS_WRITE_PONG:
 			n = LWS_WS_OPCODE_07__PONG;
diff --git a/lib/parsers.c b/lib/parsers.c
index 91e0a3f..a320fef 100644
--- a/lib/parsers.c
+++ b/lib/parsers.c
@@ -858,8 +858,6 @@
 			return 0;
 
 		case LWS_WS_OPCODE_07__PONG:
-			/* keep the statistics... */
-			wsi->u.ws.pings_vs_pongs--;
 			/* ... then just drop it */
 			wsi->u.ws.rx_user_buffer_head = 0;
 			return 0;
diff --git a/lib/private-libwebsockets.h b/lib/private-libwebsockets.h
index a9368bc..4c9c1c1 100644
--- a/lib/private-libwebsockets.h
+++ b/lib/private-libwebsockets.h
@@ -328,16 +328,13 @@
 struct _lws_websocket_related {
 	char *rx_user_buffer;
 	int rx_user_buffer_head;
-	unsigned char masking_key_04[20];
 	unsigned char frame_masking_nonce_04[4];
-	unsigned char frame_mask_04[20];
 	unsigned char frame_mask_index;
 	size_t rx_packet_length;
 	unsigned char opcode;
 	unsigned int final:1;
 	unsigned char rsv;
 	unsigned int frame_is_binary:1;
-	int pings_vs_pongs;
 	unsigned int all_zero_nonce:1;
 	enum lws_close_status close_reason;
 	unsigned char *rxflow_buffer;