Lua: remove 'http' shortcut.

Since 6bb9f299 (or master/1834c5a7) it was not possible to load
luahttp using this shortcut anyway.

modules/misc/lua/intf.c

@@ -78,6 +78,7 @@ static const struct
     { "luatelnet", "telnet" },
     { "telnet", "telnet" },
     { "luahttp", "http" },
+    /* { "http", "http" }, */
     { NULL, NULL } };
 
 static const char *WordInList( const char *psz_list, const char *psz_word )

modules/misc/lua/vlc.c

@@ -76,7 +76,7 @@ vlc_module_begin ()
         set_description( N_("Interfaces implemented using lua scripts") )
         add_shortcut( "luaintf" )
         add_shortcut( "luahttp" )
-        add_shortcut( "http" )
+        /* add_shortcut( "http" ) */
         add_shortcut( "luatelnet" )
         add_shortcut( "telnet" )
         add_shortcut( "luahotkeys" )