Remove old documentation of modbus_receive_from

doc/Makefile.am

@@ -24,7 +24,6 @@ MAN3 = \
         modbus_read_input_registers.3 \
         modbus_read_registers.3 \
         modbus_receive_confirmation.3 \
-        modbus_receive_from.3 \
         modbus_receive.3 \
         modbus_reply_exception.3 \
         modbus_reply.3 \

doc/modbus_receive_from.txt

@@ -1,38 +0,0 @@
-modbus_receive_from(3)
-======================
-
-
-NAME
-----
-modbus_receive_from - receive a indication request from a socket
-
-
-SYNOPSIS
---------
-*int modbus_receive_from(modbus_t *'ctx', int sockfd, uint8_t *'req');*
-
-
-DESCRIPTION
------------
-The *modbus_receive_from()* function shall receive an indication request from
-the socket/file descriptor given in argument _sockfd_. This function is used by
-Modbus slave/server to receive and analyze indication request sent by the
-masters/clients.
-
-
-RETURN VALUE
-------------
-The function shall store the indication request in _req_
-and return the request length if sucessful. Otherwise it shall return -1 and set
-errno.
-
-
-SEE ALSO
---------
-linkmb:modbus_receive[3]
-
-
-AUTHORS
--------
-The libmodbus documentation was written by Stéphane Raimbault
-<stephane.raimbault@gmail.com>