Remove no longer necessary p1_xmlrpc

Ths module was superceded by fast_xml in commit
dfc29ea. So let's remove it entirely to
avoid any confusion.

Signed-off-by: Peter Lemenkov <lemenkov@gmail.com>

mix.exs

@@ -29,7 +29,7 @@ defmodule Ejabberd.Mixfile do
      included_applications: [:lager, :mnesia, :p1_utils, :cache_tab,
                              :fast_tls, :stringprep, :fast_xml,
                              :stun, :fast_yaml, :ezlib, :iconv,
-                             :esip, :jiffy, :p1_oauth2, :p1_xmlrpc, :eredis,
+                             :esip, :jiffy, :p1_oauth2, :eredis,
                              :p1_mysql, :p1_pgsql, :sqlite3]]
   end
 
@@ -51,7 +51,6 @@ defmodule Ejabberd.Mixfile do
      {:esip, "~> 1.0"},
      {:jiffy, "~> 0.14.7"},
      {:p1_oauth2, "~> 0.6.1"},
-     {:p1_xmlrpc, "~> 1.15"},
      {:p1_mysql, "~> 1.0"},
      {:p1_pgsql, "~> 1.1"},
      {:sqlite3, "~> 1.1"},

mix.lock

@@ -20,7 +20,6 @@
   "p1_oauth2": {:hex, :p1_oauth2, "0.6.1", "4e021250cc198c538b097393671a41e7cebf463c248980320e038fe0316eb56b", [:rebar3], []},
   "p1_pgsql": {:hex, :p1_pgsql, "1.1.0", "ca525c42878eac095e5feb19563acc9915c845648f48fdec7ba6266c625d4ac7", [:rebar3], []},
   "p1_utils": {:hex, :p1_utils, "1.0.5", "3e698354fdc1fea5491d991457b0cb986c0a00a47d224feb841dc3ec82b9f721", [:rebar3], []},
-  "p1_xmlrpc": {:hex, :p1_xmlrpc, "1.15.1", "a382b62dc21bb372281c2488f99294d84f2b4020ed0908a1c4ad710ace3cf35a", [:rebar3], []},
   "pc": {:hex, :pc, "1.2.0", "5e07731d1f8bf997a8d0271510983e570f910b42cd59bf612e664ad6dc35742e", [:rebar3], []},
   "providers": {:hex, :providers, "1.6.0", "db0e2f9043ae60c0155205fcd238d68516331d0e5146155e33d1e79dc452964a", [:rebar3], [{:getopt, "0.8.2", [hex: :getopt, optional: false]}]},
   "relx": {:hex, :relx, "3.19.0", "286dd5244b4786f56aac75d5c8e2d1fb4cfd306810d4ec8548f3ae1b3aadb8f7", [:rebar3], [{:bbmustache, "1.0.4", [hex: :bbmustache, optional: false]}, {:cf, "0.2.1", [hex: :cf, optional: false]}, {:erlware_commons, "0.19.0", [hex: :erlware_commons, optional: false]}, {:getopt, "0.8.2", [hex: :getopt, optional: false]}, {:providers, "1.6.0", [hex: :providers, optional: false]}]},

rebar.config

@@ -18,7 +18,6 @@
         {fast_yaml, ".*", {git, "https://github.com/processone/fast_yaml", {tag, "1.0.6"}}},
         {jiffy, ".*", {git, "https://github.com/davisp/jiffy", {tag, "0.14.7"}}},
         {p1_oauth2, ".*", {git, "https://github.com/processone/p1_oauth2", {tag, "0.6.1"}}},
-        {p1_xmlrpc, ".*", {git, "https://github.com/processone/p1_xmlrpc", {tag, "1.15.1"}}},
         {luerl, ".*", {git, "https://github.com/rvirding/luerl", {tag, "v0.2"}}},
         {if_var_true, mysql, {p1_mysql, ".*", {git, "https://github.com/processone/p1_mysql",
                                                {tag, "1.0.1"}}}},