Respect timezone settings, remove unnecessary pkg-install script

Detailed maintainer log:
- Remove the setting of the TZ, LC_ALL and LANG shell variables from rc
  script.  This resolves an issue where the emby-server timezone was set to
  UTC, causing show air dates and TV guides to be off by a number of hours
  for some users [1]. Setting these variables was originally added when
  mono 3.12.1 was in the ports tree, to avoid mono throwing a number of
  System.TimeZoneNotFound exceptions when run in debugging mode [2]. Whilst
  these exceptions are still thrown, they are caught and the mono code now
  only sets the time to UTC if the correct timezone cannot be found from
  the TZ variable or /etc/localtime.
- Remove pkg-install script as it is no longer necessary to download
  Mozilla's root certificates and import them into the Mono Trust store
  (this was actually never effective, as the certificates were saved into
  the root user's mono trust store instead of the emby user's store).
- Bump PORTREVISION

[1] http://emby.media/community/index.php?/topic/13083-freenas-plugin/?p=299783
[2] mono --debug --trace=N:nothing /usr/local/lib/emby-server/MediaBrowser.Server.Mono.exe -ffmpeg /usr/local/bin/ffmpeg -ffprobe /usr/local/bin/ffprobe -programdata /var/db/emby-server

PR:		207436
Submitted by:	woodsb02@gmail.com (maintainer)
MFH:		2016Q1

multimedia/emby-server/Makefile

@@ -3,6 +3,7 @@
 
 PORTNAME=	emby-server
 PORTVERSION=	3.0.5821
+PORTREVISION=	1
 CATEGORIES=	multimedia
 
 MAINTAINER=	woodsb02@gmail.com

multimedia/emby-server/files/emby-server.in

@@ -50,13 +50,6 @@ command_args="-f -p ${pidfile} ${procname} %%PREFIX%%/lib/emby-server/MediaBrows
 start_precmd=%%RC_NAME%%_precmd
 %%RC_NAME%%_precmd()
 {
-	: ${LC_ALL:="C"}
-	: ${LANG:="C"}
-	: ${TZ:="UTC"}
-	export LC_ALL
-	export LANG
-	export TZ
-
 	if [ ! -e "${pidfile}" ]; then
 		install -g ${%%RC_NAME%%_group} -o ${%%RC_NAME%%_user} -- /dev/null "${pidfile}";
 	fi

multimedia/emby-server/pkg-install

@@ -1,15 +0,0 @@
-#!/bin/sh
-
-if [ $# -ne 2 ]; then
-    echo "usage: $0 distname { PRE-INSTALL | POST-INSTALL }" >&2
-    exit 1
-fi
-
-case $2 in
-    POST-INSTALL)
-        echo "Downloading Mozilla's root certificates and importing into the Mono Trust store..."
-        ${PKG_PREFIX}/bin/mozroots --import --sync
-        ;;
-esac
-
-exit 0